Not much to say, client-side crash reading NBT data for some reason
net.minecraft.class_148: Loading entity NBT
at Not Enough Crashes deobfuscated stack trace.(1.16.5+build.10) ~[?:?]
at net.minecraft.entity.Entity.readNbt(Entity:1663) ~[?:?]
at net.minecraft.world.WorldSaveHandler.loadPlayerData(WorldSaveHandler:57) ~[?:?]
at net.minecraft.server.PlayerManager.loadPlayerData(PlayerManager:344) ~[?:?]
at net.minecraft.server.PlayerManager.onPlayerConnect(PlayerManager:138) ~[?:?]
at net.minecraft.server.network.ServerLoginNetworkHandler.acceptPlayer(ServerLoginNetworkHandler:113) ~[?:?]
at net.minecraft.server.network.ServerLoginNetworkHandler.redirect$bge000$handlePlayerJoin(ServerLoginNetworkHandler:562) ~[?:?]
at net.minecraft.server.network.ServerLoginNetworkHandler.tick(ServerLoginNetworkHandler:65) ~[?:?]
at net.minecraft.network.ClientConnection.tick(ClientConnection:228) ~[?:?]
at net.minecraft.server.ServerNetworkIo.tick(ServerNetworkIo:173) ~[?:?]
at net.minecraft.server.MinecraftServer.tickWorlds(MinecraftServer:882) ~[server-intermediary.jar:?]
at net.minecraft.server.dedicated.MinecraftDedicatedServer.tickWorlds(MinecraftDedicatedServer:312) ~[?:?]
at net.minecraft.server.MinecraftServer.tick(MinecraftServer:811) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer:670) ~[server-intermediary.jar:?]
at net.minecraft.server.MinecraftServer.method_29739(MinecraftServer:257) ~[server-intermediary.jar:?]
at java.lang.Thread.run(Thread.java:833) [?:?]
Caused by: java.lang.NullPointerException: Cannot invoke "java.util.Map.size()" because "m" is null
at java.util.HashMap.putMapEntries(HashMap.java:495) ~[?:?]
at java.util.HashMap.<init>(HashMap.java:484) ~[?:?]
at net.minecraft.recipe.RecipeManager.tweakRecipes(RecipeManager:1077) ~[?:?]
at net.minecraft.recipe.RecipeManager.doRecipeThings(RecipeManager:1062) ~[?:?]
at net.minecraft.recipe.RecipeManager.handler$ccg000$mechanix$get(RecipeManager:1142) ~[?:?]
at net.minecraft.recipe.RecipeManager.get(RecipeManager) ~[?:?]
at net.minecraft.server.network.ServerRecipeBook.handleList(ServerRecipeBook:106) ~[?:?]
at net.minecraft.server.network.ServerRecipeBook.readNbt(ServerRecipeBook:95) ~[?:?]
at net.minecraft.server.network.ServerPlayerEntity.readCustomDataFromNbt(ServerPlayerEntity:266) ~[?:?]
at net.minecraft.entity.Entity.readNbt(Entity:1654) ~[?:?]
... 14 more
[22:20:41] [Server thread/INFO]: com.mojang.authlib.GameProfile@8e01dcf[id=93b44197-490e-3bd7-93aa-757c538fb673,name=ByPaco10,properties={},legacy=false] (/127.0.0.1:43538) lost connection: Internal server error
Not much to say, client-side crash reading NBT data for some reason