limited creative v1.3.0a-beta @ Bukkit-1.3.1-R1.0-b2320jnks

18:26:43 [SEVERE] Could not pass event ItemSpawnEvent to LimitedCreative
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:332)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at org.bukkit.craftbukkit.event.CraftEventFactory.callItemSpawnEvent(CraftEventFactory.java:252)
        at net.minecraft.server.World.addEntity(World.java:839)
        at net.minecraft.server.World.addEntity(World.java:809)
        at net.minecraft.server.Entity.a(Entity.java:1154)
        at net.minecraft.server.Entity.a(Entity.java:1147)
        at net.minecraft.server.Entity.b(Entity.java:1143)
        at net.minecraft.server.EntityChicken.d(EntityChicken.java:63)
        at net.minecraft.server.EntityLiving.h_(EntityLiving.java:447)
        at net.minecraft.server.World.entityJoinedWorld(World.java:1239)
        at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:498)
        at net.minecraft.server.World.playerJoinedWorld(World.java:1221)
        at net.minecraft.server.World.tickEntities(World.java:1119)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:567)
        at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
        at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:476)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:408)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
        at de.jaschastarke.minecraft.worldguard.CRegionManager.getRegionSet(CRegionManager.java:169)
        at de.jaschastarke.minecraft.limitedcreative.regions.RegionListener.regionSet(RegionListener.java:36)
        at de.jaschastarke.minecraft.limitedcreative.regions.RegionListener.onItemSpawn(RegionListener.java:160)
        at sun.reflect.GeneratedMethodAccessor84.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
        ... 20 more
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