2013-12-28 01:38:09 [SEVERE] Could not pass event EntityDamageByEntityEvent to mcMMO v1.4.06-beta5-b2062
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:363)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:31)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
	at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.callEvent(CraftEventFactory.java:76)
	at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:397)
	at org.bukkit.craftbukkit.v1_5_R3.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:426)
	at net.minecraft.entity.EntityLiving.func_70097_a(EntityLiving.java:1075)
	at net.minecraft.entity.passive.EntityAnimal.func_70097_a(SourceFile:119)
	at extrautils.block.BlockSpike.func_71869_a(BlockSpike.java:162)
	at net.minecraft.entity.Entity.func_70017_D(Entity.java:1137)
	at net.minecraft.entity.Entity.func_70091_d(Entity.java:1067)
	at net.minecraft.entity.EntityLiving.func_70612_e(EntityLiving.java:1684)
	at net.minecraft.entity.EntityLiving.func_70636_d(EntityLiving.java:2008)
	at net.minecraft.entity.EntityAgeable.func_70636_d(EntityAgeable.java:115)
	at net.minecraft.entity.passive.EntityAnimal.func_70636_d(SourceFile:30)
	at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:871)
	at net.minecraft.world.World.func_72866_a(World.java:2522)
	at net.minecraft.world.WorldServer.func_72866_a(WorldServer.java:941)
	at net.minecraft.world.World.func_72870_g(World.java:2475)
	at net.minecraft.world.World.func_72939_s(World.java:2287)
	at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:806)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:838)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:732)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:614)
	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at com.gmail.nossr50.util.skills.CombatUtils.combatChecks(CombatUtils.java:146)
	at com.gmail.nossr50.listeners.EntityListener.onEntityDamageByEntity(EntityListener.java:153)
	at sun.reflect.GeneratedMethodAccessor52.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:361)
	... 27 more