2012-09-09 15:28:00 [SEVERE] Could not pass event EntityDamageByEntityEvent to HardCoreWorlds
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.callEvent(CraftEventFactory.java:80)
	at org.bukkit.craftbukkit.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:364)
	at org.bukkit.craftbukkit.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:386)
	at net.minecraft.server.EntityLiving.damageEntity(EntityLiving.java:591)
	at net.minecraft.server.EntityHuman.damageEntity(EntityHuman.java:595)
	at net.minecraft.server.EntityPlayer.damageEntity(EntityPlayer.java:349)
	at net.minecraft.server.EntityIronGolem.k(EntityIronGolem.java:92)
	at net.minecraft.server.PathfinderGoalMeleeAttack.d(PathfinderGoalMeleeAttack.java:79)
	at net.minecraft.server.PathfinderGoalSelector.a(SourceFile:84)
	at net.minecraft.server.EntityLiving.bc(EntityLiving.java:1216)
	at net.minecraft.server.EntityLiving.d(EntityLiving.java:1091)
	at net.minecraft.server.EntityIronGolem.d(EntityIronGolem.java:64)
	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:565)
	at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:212)
	at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
	at com.Cayviel.HardCoreWorlds.MobDifficulties.getDamage(MobDifficulties.java:70)
	at com.Cayviel.HardCoreWorlds.EntListen.onEntityDamage(EntListen.java:31)
	at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330)
	... 25 more