[10:55:40] [Server thread/INFO]: OMan100 issued server command: /heads
[10:55:40] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'heads' in plugin CustomHeads v2.9.5
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:149) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at org.bukkit.craftbukkit.v1_14_R1.CraftServer.dispatchCommand(CraftServer.java:707) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.PlayerConnection.handleCommand(PlayerConnection.java:1670) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1510) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:47) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:13) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:135) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:114) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.MinecraftServer.aW(MinecraftServer.java:895) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:888) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:123) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:872) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:805) [spigot.jar:git-Spigot-df0eb25-4090d01]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: java.lang.NoSuchMethodError: org.bukkit.inventory.Inventory.getTitle()Ljava/lang/String;
	at de.mrstein.customheads.utils.Utils.cloneInventory(Utils.java:364) ~[?:?]
	at de.mrstein.customheads.stuff.CHCommand.onCommand(CHCommand.java:105) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[spigot.jar:git-Spigot-df0eb25-4090d01]
	... 17 more