Bukkit

What steps will reproduce the problem?
1. Run with RB 1280 or higher
2.
3.

What is the expected output? What do you see instead?
nothing works, errors on PLAYER_MOVE

What version of the product are you using?

Do you have an error log of what happened?
22:31:29 [SEVERE] Could not pass event PLAYER_MOVE to ArcticSpleef
java.lang.NullPointerException
        at com.saschagehlich.plugins.arcticspleef.managers.ArcticSpleefGroundsManager.getCollidingBattleGround(ArcticSpleefGroundsManager.java:130)
        at com.saschagehlich.plugins.arcticspleef.ArcticSpleefPlayerListener.onPlayerMove(ArcticSpleefPlayerListener.java:40)
        at org.bukkit.plugin.java.JavaPluginLoader$7.execute(JavaPluginLoader.java:302)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:180)
        at net.minecraft.server.Packet10Flying.a(SourceFile:126)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:92)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:471)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)

Please provide any additional information below.