Bukkit

What steps will reproduce the problem?
1. I am not sure of the cause of the error
2.
Citizens is loaded, I had to make all npc playerlist. ! npc cannot be  as it is a wolf with atacck traits

What is the expected output? What do you see instead?

What version of the product are you using?
latest

Do you have an error log of what happened?

3:17:44 PM [SEVERE] Could not pass event EntityTargetLivingEntityEvent to BackFromTheDead v0.9.5.0
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
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.v1_5_R3.event.CraftEventFactory.callEntityTargetLivingEvent(CraftEventFactory.java:529)
at net.minecraft.server.v1_5_R3.PathfinderGoalTarget.a(PathfinderGoalTarget.java:122)
at net.minecraft.server.v1_5_R3.PathfinderGoalNearestAttackableTarget.a(SourceFile:54)
at net.minecraft.server.v1_5_R3.PathfinderGoalSelector.a(PathfinderGoalSelector.java:66)
at net.minecraft.server.v1_5_R3.EntityLiving.bo(EntityLiving.java:1505)
at net.minecraft.server.v1_5_R3.EntityLiving.c(EntityLiving.java:1299)
at net.minecraft.server.v1_5_R3.EntityMonster.c(EntityMonster.java:20)
at net.minecraft.server.v1_5_R3.EntityZombie.c(EntityZombie.java:117)
at net.minecraft.server.v1_5_R3.EntityLiving.l_(EntityLiving.java:526)
at net.minecraft.server.v1_5_R3.EntityMonster.l_(EntityMonster.java:24)
at net.minecraft.server.v1_5_R3.EntityZombie.l_(EntityZombie.java:136)
at net.minecraft.server.v1_5_R3.World.entityJoinedWorld(World.java:1355)
at net.minecraft.server.v1_5_R3.WorldServer.entityJoinedWorld(WorldServer.java:614)
at net.minecraft.server.v1_5_R3.World.playerJoinedWorld(World.java:1336)
at net.minecraft.server.v1_5_R3.World.tickEntities(World.java:1224)
at net.minecraft.server.v1_5_R3.WorldServer.tickEntities(WorldServer.java:480)
at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:563)
at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226)
at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477)
at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410)
at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.ClassCastException: org.bukkit.event.entity.EntityTargetLivingEntityEvent cannot be cast to org.bukkit.entity.Zombie
at me.apollo.backfromthedead.backfromthedeadzombiecontrol.ZombieController.doMaintainStats(ZombieController.java:255)
at me.apollo.backfromthedead.backfromthedeadzombiecontrol.ZombieController.maintainStatsTarget(ZombieController.java:241)
at sun.reflect.GeneratedMethodAccessor515.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:425)
... 24 more