Show stack trace
```
[21:45:31] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to FastCraftPlus v0.19.4
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at org.bukkit.craftbukkit.v1_9_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:231) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.PlayerInteractManager.a(PlayerInteractManager.java:482) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:888) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.PacketPlayInUseItem.a(SourceFile:55) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.PacketPlayInUseItem.a(SourceFile:11) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_91]
at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_91]
at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:721) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_91]
Caused by: java.lang.NullPointerException
at java.util.LinkedList.addAll(Unknown Source) ~[?:1.8.0_91]
at co.kepler.fastcraftplus.craftgui.buttons.GUIButtonRecipe.getItem(GUIButtonRecipe.java:80) ~[?:?]
at co.kepler.fastcraftplus.api.gui.GUI.updateLayout(GUI.java:139) ~[?:?]
at co.kepler.fastcraftplus.craftgui.GUIFastCraft.updateLayout(GUIFastCraft.java:96) ~[?:?]
at co.kepler.fastcraftplus.craftgui.GUIFastCraft.(GUIFastCraft.java:58) ~[?:?]
at co.kepler.fastcraftplus.craftgui.PlayerManager.onPlayerInteract(PlayerManager.java:46) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_91]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_91]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_91]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5]
... 17 more
```
Description
Exception doesn't occur when the items needed to craft the boots are not in your inventory. Booster Boots: https://www.spigotmc.org/resources/booster-boots.21792/
Debug Output
Show **/fcadmin debug** output
``` ========== FastCraft+ Debug Info ========== Versions: FastCraft+ v0.19.4 git-Spigot-1480adb-8b61cc5 (MC: 1.9.2) 1.9.2-R0.1-SNAPSHOT Java 1.8.0_91 Other Plugins (58): ArmorPlus 1.10-BETA AsyncWorldEdit 3.3.7 AsyncWorldEditInjector 3.3.5 Autorank 3.7.3 BetterMcmmoStats 1.2.1 Booster-Boots 1.7.0 BungeeTabListPlus 2.4.4 BuycraftX 10.0 ChestShop 4.0-r5 Citizens 2.0.17-SNAPSHOT (build 1340) ColorName 2.0.0 CommandNPC 1.7.2 CrackShot 0.98.5 CraftableDisks 3.0.2 CraftBook 3.9-SNAPSHOT dynmap 2.3-SNAPSHOT-1132 EnderDoors 1.3.0 Essentials TeamCity EssentialsAntiBuild TeamCity EssentialsChat TeamCity EssentialsProtect TeamCity EssentialsSpawn TeamCity Factions 2.8.13 FactionsDynmap 2.8.13 FindDeathLocation 1.5.5 GroupManager 2.0 (Phoenix) HeartDrops 1.5.3 Jobs 3.3.6 LockettePro 2.1.2 Magic 6.1.1 MassiveCore 2.8.13 mcMMO 1.5.05-SNAPSHOT-b133 mcMMOAction 0.9 MCMMOShop 1.0 MobCatcher 3.26 MoreHearts 1.1 Multiverse-Core 2.5-b719 Multiverse-Portals 2.5-b742 MysqlPlayerDataBridge 3.1.1 MythicMobs 2.4.1 PickupMoney 2.3 ProjectKorra 1.8.0 BETA 9 ProtocolLib 4.0.0-SNAPSHOT-b269 pUtils 1.2.1 React 1.6p RockMC_BendingMenu 1.4.0 Sentry 1.9.0 SilkSpawners 3.7.1 SimpleBungeePortals 1.0 Stats 3.1.0-RC-431 TradeMe 3.4.0.7 Vampire 2.8.13 Vault 1.5.6-b49 VisualWorldEdit 2.1 WeaponsPlus 1.6.1 WorldBorder 1.8.5 WorldEdit 6.1;no_git_id WorldGuard 6.1 =========================================== ```Stack Trace
Show stack trace
``` [21:45:31] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to FastCraftPlus v0.19.4 org.bukkit.event.EventException at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at org.bukkit.craftbukkit.v1_9_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:231) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.PlayerInteractManager.a(PlayerInteractManager.java:482) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.PlayerConnection.a(PlayerConnection.java:888) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.PacketPlayInUseItem.a(SourceFile:55) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.PacketPlayInUseItem.a(SourceFile:11) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_91] at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_91] at net.minecraft.server.v1_9_R1.SystemUtils.a(SourceFile:45) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:721) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot-1.9.2.jar:git-Spigot-1480adb-8b61cc5] at java.lang.Thread.run(Unknown Source) [?:1.8.0_91] Caused by: java.lang.NullPointerException at java.util.LinkedList.addAll(Unknown Source) ~[?:1.8.0_91] at co.kepler.fastcraftplus.craftgui.buttons.GUIButtonRecipe.getItem(GUIButtonRecipe.java:80) ~[?:?] at co.kepler.fastcraftplus.api.gui.GUI.updateLayout(GUI.java:139) ~[?:?] at co.kepler.fastcraftplus.craftgui.GUIFastCraft.updateLayout(GUIFastCraft.java:96) ~[?:?] at co.kepler.fastcraftplus.craftgui.GUIFastCraft.