Player Head Issue

[AhmHkn0]

Because the bet menu contains a player head, and since we cannot remove that head from the config, the server sometimes crashes when it fails to retrieve the head data. I don't want a player head in this menu—my server is crashing.

[17:51:33] [Paper Watchdog Thread/ERROR]: Current Thread: Server thread
[17:51:33] [Paper Watchdog Thread/ERROR]: 	PID: 38 | Suspended: false | Native: false | State: RUNNABLE
[17:51:33] [Paper Watchdog Thread/ERROR]: 	Stack:
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.util.HashMap.putVal(HashMap.java:662)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.util.HashMap.put(HashMap.java:610)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.util.HashSet.add(HashSet.java:221)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.util.AbstractCollection.addAll(AbstractCollection.java:336)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.google.common.collect.AbstractMapBasedMultimap.removeAll(AbstractMapBasedMultimap.java:264)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.google.common.collect.AbstractSetMultimap.removeAll(AbstractSetMultimap.java:90)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.google.common.collect.LinkedHashMultimap.removeAll(LinkedHashMultimap.java:86)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.google.common.collect.AbstractSetMultimap.removeAll(AbstractSetMultimap.java:33)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.google.common.collect.ForwardingMultimap.removeAll(ForwardingMultimap.java:122)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.destroystokyo.paper.profile.CraftPlayerProfile.copyProfileProperties(CraftPlayerProfile.java:214)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.destroystokyo.paper.profile.CraftPlayerProfile.copyProfileProperties(CraftPlayerProfile.java:202)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.destroystokyo.paper.profile.CraftPlayerProfile.completeFromCache(CraftPlayerProfile.java:174)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//org.bukkit.craftbukkit.v1_16_R3.inventory.CraftMetaSkull.setProfile(CraftMetaSkull.java:89)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//org.bukkit.craftbukkit.v1_16_R3.inventory.CraftMetaSkull.setOwningPlayer(CraftMetaSkull.java:209)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.util.compat.Skulls.setProfile(Skulls.java:64)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.util.gui.Button.lambda$setOwner$2(Button.java:55)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.util.gui.Button$$Lambda$13491/0x0000000804301618.accept(Unknown Source)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.util.gui.Button.editMeta(Button.java:37)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.util.gui.Button.setOwner(Button.java:55)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.gui.inventory.buttons.HeadButton.<init>(HeadButton.java:17)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.gui.inventory.InventoryGui.<init>(InventoryGui.java:19)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.inventories.InventoryManager.create(InventoryManager.java:60)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		me.realized.duels.duel.DuelManager$DuelListener.on(DuelManager.java:520)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.lang.invoke.DirectMethodHandle$Holder.invokeVirtual(DirectMethodHandle$Holder)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.lang.invoke.LambdaForm$MH/0x0000000801c01800.invoke(LambdaForm$MH)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.lang.invoke.LambdaForm$MH/0x0000000802124000.invoke_MT(LambdaForm$MH)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//com.destroystokyo.paper.event.executor.MethodHandleEventExecutor.execute(MethodHandleEventExecutor.java:40)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:76)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:624)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:888)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.EntityPlayer.die(EntityPlayer.java:1006)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.EntityLiving.damageEntity(EntityLiving.java:1389)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.EntityHuman.damageEntity(EntityHuman.java:902)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.EntityPlayer.damageEntity(EntityPlayer.java:1186)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.EntityHuman.attack(EntityHuman.java:1229)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.EntityPlayer.attack(EntityPlayer.java:2290)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:2546)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.PacketPlayInUseEntity.a(PacketPlayInUseEntity.java:55)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.PacketPlayInUseEntity.a(PacketPlayInUseEntity.java:12)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.PlayerConnectionUtils.lambda$ensureMainThread$1(PlayerConnectionUtils.java:55)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.PlayerConnectionUtils$$Lambda$12272/0x0000000803cad2b8.run(Unknown Source)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.TickTask.run(SourceFile:18)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeTask(IAsyncTaskHandler.java:136)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeNext(IAsyncTaskHandler.java:109)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.MinecraftServer.bb(MinecraftServer.java:1339)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.MinecraftServer.executeNext(MinecraftServer.java:1332)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.IAsyncTaskHandler.awaitTasks(IAsyncTaskHandler.java:119)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.MinecraftServer.sleepForTick(MinecraftServer.java:1308)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:1152)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.MinecraftServer.lambda$a$0(MinecraftServer.java:293)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		app//net.minecraft.server.v1_16_R3.MinecraftServer$$Lambda$3184/0x000000080133fbe0.run(Unknown Source)
[17:51:33] [Paper Watchdog Thread/ERROR]: 		[email protected]/java.lang.Thread.run(Thread.java:833)