BattleKits /fillall error

2012-11-08 14:25:25 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'fillall' in plugin BattleKits v1.4.1
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:185)
	at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:504)
	at net.minecraft.server.NetServerHandler.handleCommand(NetServerHandler.java:911)
	at net.minecraft.server.NetServerHandler.chat(NetServerHandler.java:824)
	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:806)
	at net.minecraft.server.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.NetworkManager.b(NetworkManager.java:282)
	at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:111)
	at net.minecraft.server.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:578)
	at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:215)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:495)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:428)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:818)
Caused by: java.lang.NullPointerException
	at com.lavacraftserver.BattleKits.CommandRefillAll.onCommand(CommandRefillAll.java:37)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 15 more