[Bug] Paying with player's inventory causes null pointer exception (feat. Towny Adv & TownyProvinces)

[iomatix]

Describe the bug

Null pointer exception if paying for new town (Towny Adv & TownyProvinces) with player's inventory money. If money was insiade of chest everything is fine so I assume that may be gringott's error.

Caused by: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.removeFromShulkerBox(GringottsAccount.java:332) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$remove$2(GringottsAccount.java:265) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$callSync$0(GringottsAccount.java:54) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.callSync(GringottsAccount.java:61) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:131) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:127) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:116) ~[gringotts.jar:?]
        at com.palmergames.bukkit.towny.object.economy.adapter.VaultEconomyAdapter.subtract(VaultEconomyAdapter.java:23) ~[Towny.jar:?]

To Reproduce (PRE)

Steps to reproduce the behavior:

• 0a. Install newest Towny Adv + Provinces plugins all together with required plugins.
• 0b. Install Gringott's newest release (v2.12.5) all together with required plugins.
• 0c. Change config file to:

To Reproduce

0. I guess the fastest way gonna be using op instead of permissions but we are using configured lucky perms.
1. Generate regions with tpra region regenerate elyean
2. Make sure there's no money in the vault's chests so the only money you have is in the inventory.
3. Make sure it's enough money to buy a region.
4. Buy the region with /t new test command
5. Check the console logg.

Expected behavior

I assume it's trying get the money from chest instead of player's inventory at org.gestern.gringotts.GringottsAccount.removeFromShulkerBox(GringottsAccount.java:332) ~[gringotts.jar:?] I guess that's why paying with chest works normally but with inventory's money not.

Screenshots

[22:33:21 ERROR]: Could not pass event PreNewTownEvent to TownyProvinces v2.0.3
org.gestern.gringotts.GringottsException: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:470) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:131) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:127) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:116) ~[gringotts.jar:?]
        at com.palmergames.bukkit.towny.object.economy.adapter.VaultEconomyAdapter.subtract(VaultEconomyAdapter.java:23) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.TownyEconomyHandler.subtract(TownyEconomyHandler.java:200) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.EconomyAccount.subtractMoney(EconomyAccount.java:31) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.economy.Account.withdraw(Account.java:90) ~[Towny.jar:?]
        at io.github.townyadvanced.townyprovinces.listeners.TownyListener.onNewTownAttempt(TownyListener.java:118) ~[TownyProvinces.jar:?]
        at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor728.execute(Unknown Source) ~[?:?]        at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:77) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:git-Paper-318]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[paper-1.20.2.jar:git-Paper-318]
        at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[paper-1.20.2.jar:git-Paper-318]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:615) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        at com.palmergames.bukkit.util.BukkitTools.fireEvent(BukkitTools.java:383) ~[Towny.jar:?]
        at com.palmergames.bukkit.util.BukkitTools.ifCancelledThenThrow(BukkitTools.java:377) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.confirmations.ConfirmationHandler.acceptConfirmation(ConfirmationHandler.java:131) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.command.commandobjects.ConfirmCommand.execute(ConfirmCommand.java:28) ~[Towny.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R2.CraftServer.dispatchCommand(CraftServer.java:991) ~[paper-1.20.2.jar:git-Paper-318]
        at org.bukkit.craftbukkit.v1_20_R2.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.2.jar:git-Paper-318]
        at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:265) ~[paper-1.20.2.jar:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:330) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:314) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2208) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$19(ServerGamePacketListenerImpl.java:2168) ~[?:?]
        at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1324) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:193) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1301) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1294) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1272) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1160) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.20.2.jar:git-Paper-318]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) ~[?:?]
        at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2096) ~[?:?]
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:468) ~[gringotts.jar:?]
        ... 44 more
Caused by: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.removeFromShulkerBox(GringottsAccount.java:332) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$remove$2(GringottsAccount.java:265) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$callSync$0(GringottsAccount.java:54) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.callSync(GringottsAccount.java:61) ~[gringotts.jar:?]
        ... 44 more
[22:33:21 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing 'confirm' in com.palmergames.bukkit.towny.command.commandobjects.ConfirmCommand(confirm)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:165) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R2.CraftServer.dispatchCommand(CraftServer.java:991) ~[paper-1.20.2.jar:git-Paper-318]
        at org.bukkit.craftbukkit.v1_20_R2.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.2.jar:git-Paper-318]
        at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:265) ~[paper-1.20.2.jar:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:330) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:314) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2208) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$19(ServerGamePacketListenerImpl.java:2168) ~[?:?]
        at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1324) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:193) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1301) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1294) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1272) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1160) ~[paper-1.20.2.jar:git-Paper-318]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.20.2.jar:git-Paper-318]
        at java.lang.Thread.run(Thread.java:833) ~[?:?]
Caused by: org.gestern.gringotts.GringottsException: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:470) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:131) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:127) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:116) ~[gringotts.jar:?]
        at com.palmergames.bukkit.towny.object.economy.adapter.VaultEconomyAdapter.subtract(VaultEconomyAdapter.java:23) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.TownyEconomyHandler.subtract(TownyEconomyHandler.java:200) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.EconomyAccount.subtractMoney(EconomyAccount.java:31) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.economy.Account.withdraw(Account.java:90) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.confirmations.ConfirmationHandler.acceptConfirmation(ConfirmationHandler.java:152) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.command.commandobjects.ConfirmCommand.execute(ConfirmCommand.java:28) ~[Towny.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        ... 22 more
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) ~[?:?]
        at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2096) ~[?:?]
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:468) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:131) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:127) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:116) ~[gringotts.jar:?]
        at com.palmergames.bukkit.towny.object.economy.adapter.VaultEconomyAdapter.subtract(VaultEconomyAdapter.java:23) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.TownyEconomyHandler.subtract(TownyEconomyHandler.java:200) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.EconomyAccount.subtractMoney(EconomyAccount.java:31) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.economy.Account.withdraw(Account.java:90) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.confirmations.ConfirmationHandler.acceptConfirmation(ConfirmationHandler.java:152) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.command.commandobjects.ConfirmCommand.execute(ConfirmCommand.java:28) ~[Towny.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        ... 22 more
Caused by: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.removeFromShulkerBox(GringottsAccount.java:332) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$remove$2(GringottsAccount.java:265) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$callSync$0(GringottsAccount.java:54) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.callSync(GringottsAccount.java:61) ~[gringotts.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:131) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:127) ~[gringotts.jar:?]
        at org.gestern.gringotts.api.impl.VaultConnector.withdrawPlayer(VaultConnector.java:116) ~[gringotts.jar:?]
        at com.palmergames.bukkit.towny.object.economy.adapter.VaultEconomyAdapter.subtract(VaultEconomyAdapter.java:23) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.TownyEconomyHandler.subtract(TownyEconomyHandler.java:200) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.EconomyAccount.subtractMoney(EconomyAccount.java:31) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.object.economy.Account.withdraw(Account.java:90) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.confirmations.ConfirmationHandler.acceptConfirmation(ConfirmationHandler.java:152) ~[Towny.jar:?]
        at com.palmergames.bukkit.towny.command.commandobjects.ConfirmCommand.execute(ConfirmCommand.java:28) ~[Towny.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
        ... 22 more

Desktop (please complete the following information):

• Server Type: Newest PaperMC
• Server Version: 1.20.2
• Gringotts Version: 2.12.5

[Ethansito]

I don't think this bug is related to Towny because I am having the same problem on my test server without Towny. Using /eco and /moneyadmin to remove money from players causes a NPE if the player does not have the money in their chest.

This is causing an issue for me because I am trying to write a denizen script that removes money from a player's balance and gives them an item. The money in the player's inventory is accounted for in the player's balance, which causes them to receive the item, but the money is not removed due to the NPE. I will be unable to use Gringotts until this issue is fixed.

Server Type: Latest Paper 1.20.4 Gringotts Version 2.12.5

org.bukkit.command.CommandException: Unhandled exception executing command 'moneyadmin' in plugin Gringotts v2.12.5
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R3.CraftServer.dispatchCommand(CraftServer.java:999) ~[paper-1.20.4.jar:git-Paper-435]
        at org.bukkit.craftbukkit.v1_20_R3.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.4.jar:git-Paper-435]
        at com.mojang.brigadier.context.ContextChain.runExecutable(ContextChain.java:73) ~[brigadier-1.2.9.jar:?]
        at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:32) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:19) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.UnboundEntryAction.lambda$bind$0(UnboundEntryAction.java:8) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.CommandQueueEntry.a(CommandQueueEntry.java:5) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.ExecutionContext.runCommandQueue(ExecutionContext.java:101) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.Commands.executeCommandInContext(Commands.java:434) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:336) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:323) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2230) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$14(ServerGamePacketListenerImpl.java:2190) ~[?:?]
        at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1455) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:194) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1432) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1355) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1333) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1222) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[paper-1.20.4.jar:git-Paper-435]
        at java.lang.Thread.run(Thread.java:1623) ~[?:?]
Caused by: org.gestern.gringotts.GringottsException: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:470) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.commands.MoneyAdminExecutor.onCommand(MoneyAdminExecutor.java:135) ~[gringotts-2.12.5.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 29 more
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) ~[?:?]
        at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2096) ~[?:?]
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:468) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.commands.MoneyAdminExecutor.onCommand(MoneyAdminExecutor.java:135) ~[gringotts-2.12.5.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 29 more
Caused by: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.removeFromShulkerBox(GringottsAccount.java:332) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$remove$2(GringottsAccount.java:265) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$callSync$0(GringottsAccount.java:54) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.callSync(GringottsAccount.java:61) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.commands.MoneyAdminExecutor.onCommand(MoneyAdminExecutor.java:135) ~[gringotts-2.12.5.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 29 more
[18:47:23 INFO]: ethansito issued server command: /moneyadmin remove ethansito 1
[18:47:23 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'moneyadmin' in plugin Gringotts v2.12.5
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R3.CraftServer.dispatchCommand(CraftServer.java:999) ~[paper-1.20.4.jar:git-Paper-435]
        at org.bukkit.craftbukkit.v1_20_R3.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64) ~[paper-1.20.4.jar:git-Paper-435]
        at com.mojang.brigadier.context.ContextChain.runExecutable(ContextChain.java:73) ~[brigadier-1.2.9.jar:?]
        at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:32) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.tasks.ExecuteCommand.execute(ExecuteCommand.java:19) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.UnboundEntryAction.lambda$bind$0(UnboundEntryAction.java:8) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.CommandQueueEntry.a(CommandQueueEntry.java:5) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.execution.ExecutionContext.runCommandQueue(ExecutionContext.java:101) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.commands.Commands.executeCommandInContext(Commands.java:434) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:336) ~[?:?]
        at net.minecraft.commands.Commands.performCommand(Commands.java:323) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.performChatCommand(ServerGamePacketListenerImpl.java:2230) ~[?:?]
        at net.minecraft.server.network.ServerGamePacketListenerImpl.lambda$handleChatCommand$14(ServerGamePacketListenerImpl.java:2190) ~[?:?]
        at net.minecraft.util.thread.BlockableEventLoop.lambda$submitAsync$0(BlockableEventLoop.java:59) ~[?:?]
        at java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768) ~[?:?]
        at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
        at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
        at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1455) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:194) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
        at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1432) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1355) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
        at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1333) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1222) ~[paper-1.20.4.jar:git-Paper-435]
        at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:319) ~[paper-1.20.4.jar:git-Paper-435]
        at java.lang.Thread.run(Thread.java:1623) ~[?:?]
Caused by: org.gestern.gringotts.GringottsException: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:470) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.commands.MoneyAdminExecutor.onCommand(MoneyAdminExecutor.java:135) ~[gringotts-2.12.5.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 29 more
Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396) ~[?:?]
        at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2096) ~[?:?]
        at org.gestern.gringotts.GringottsAccount.getTimeout(GringottsAccount.java:468) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.commands.MoneyAdminExecutor.onCommand(MoneyAdminExecutor.java:135) ~[gringotts-2.12.5.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 29 more
Caused by: java.lang.NullPointerException: Cannot invoke "org.bukkit.inventory.ItemStack.getType()" because "itemStack" is null
        at org.gestern.gringotts.GringottsAccount.removeFromShulkerBox(GringottsAccount.java:332) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$remove$2(GringottsAccount.java:265) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.lambda$callSync$0(GringottsAccount.java:54) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.callSync(GringottsAccount.java:61) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.GringottsAccount.remove(GringottsAccount.java:304) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.api.impl.GringottsEco$ValidAccount.remove(GringottsEco.java:659) ~[gringotts-2.12.5.jar:?]
        at org.gestern.gringotts.commands.MoneyAdminExecutor.onCommand(MoneyAdminExecutor.java:135) ~[gringotts-2.12.5.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[paper-api-1.20.4-R0.1-SNAPSHOT.jar:?]
        ... 29 more

[weaves7]

Please try this test build https://github.com/weaves7/Gringotts/releases/tag/v.2.12.7-SNAPSHOT

[Ethansito]

Hello, sorry for taking so long to get back to you. The fix works! Thanks!