[16:55:58] [Server thread/INFO]: NotRita issued server command: /smelt
[16:55:58] [Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'smelt' in plugin Smelter v2.3
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at org.skylords.core.patches.CustomCommandMap.dispatch(CustomCommandMap.java:35) ~[?:?]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:717) ~[server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1264) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1075) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_171]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_171]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:778) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:387) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:717) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:620) [server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_171]
Caused by: java.lang.NoSuchMethodError: org.bukkit.inventory.PlayerInventory.getItemInMainHand()Lorg/bukkit/inventory/ItemStack;
	at com.therealspoljo.smelter.commands.Smelt.onCommand(Smelt.java:35) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[server-1.8.8-R0.2-SNAPSHOT.jar:git-TacoSpigot-unknown]
	... 15 more