Every time i start the server this keeps popping up in the console after the server is done loading:

2012-12-14 23:36:40 [SEVERE] Could not pass event EntityDamageEvent to Ablockalypse v1.1.9
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:341)
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 net.minecraft.server.Entity.burn(Entity.java:784)
at net.minecraft.server.Entity.move(Entity.java:693)
at net.minecraft.server.EntityLiving.e(EntityLiving.java:960)
at net.minecraft.server.EntityLiving.c(EntityLiving.java:1257)
at net.minecraft.server.EntityLiving.j_(EntityLiving.java:508)
at net.minecraft.server.EntityBat.j_(SourceFile:106)
at net.minecraft.server.World.entityJoinedWorld(World.java:1333)
at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:546)
at net.minecraft.server.World.playerJoinedWorld(World.java:1315)
at net.minecraft.server.World.tickEntities(World.java:1193)
at net.minecraft.server.WorldServer.tickEntities(WorldServer.java:444)
at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:577)
at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_4_5/entity/CraftWolf
at com.github.JamesNorris.Data.GlobalData.isZAMob(GlobalData.java:226)
at com.github.JamesNorris.Event.Bukkit.EntityDamage.EDE(EntityDamage.java:21)
at sun.reflect.GeneratedMethodAccessor1.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:339)
... 19 more
2012-12-14 23:36:40 [SEVERE] Could not pass event EntityDamageByBlockEvent to Ablockalypse v1.1.9
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:341)
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 net.minecraft.server.Entity.A(Entity.java:363)
at net.minecraft.server.Entity.y(Entity.java:331)
at net.minecraft.server.EntityLiving.y(EntityLiving.java:307)
at net.minecraft.server.Entity.j_(Entity.java:230)
at net.minecraft.server.EntityLiving.j_(EntityLiving.java:482)
at net.minecraft.server.EntityBat.j_(SourceFile:106)
at net.minecraft.server.World.entityJoinedWorld(World.java:1333)
at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:546)
at net.minecraft.server.World.playerJoinedWorld(World.java:1315)
at net.minecraft.server.World.tickEntities(World.java:1193)
at net.minecraft.server.WorldServer.tickEntities(WorldServer.java:444)
at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:577)
at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_4_5/entity/CraftWolf
at com.github.JamesNorris.Data.GlobalData.isZAMob(GlobalData.java:226)
at com.github.JamesNorris.Event.Bukkit.EntityDamage.EDE(EntityDamage.java:21)
at sun.reflect.GeneratedMethodAccessor1.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:339)
... 19 more

it keeps on repeating and the worst part is that if i join a game it spawns zombies and all but the wave just ends and starts a new one and that keeps repeating. it makes them spawn more zombies and dogs. increasing their life and speed at the same time.

This is due to the fact that it runs a development build of CraftBukkit (at least it looks that way). This is a problem with the newer versions of CB, in which the staff decided to put versioning into the package names. I will make it known that Ablockalypse requires the development build of CB.