compatibility with mypet

[BIO620]

2013-08-18 13:29:19 [SEVERE] Could not pass event PlayerDeathEvent to BattleTracker v2.5.5.1
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_6_R2.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:344)
at net.minecraft.server.v1_6_R2.EntityPlayer.die(EntityPlayer.java:307)
at net.minecraft.server.v1_6_R2.EntityLiving.damageEntity(EntityLiving.java:709)
at net.minecraft.server.v1_6_R2.EntityHuman.damageEntity(EntityHuman.java:714)
at net.minecraft.server.v1_6_R2.EntityPlayer.damageEntity(EntityPlayer.java:378)
at de.Keyle.MyPet.entity.types.EntityMyPet.attack(EntityMyPet.java:306)
at de.Keyle.MyPet.entity.ai.attack.MeleeAttack.tick(MeleeAttack.java:127)
at de.Keyle.MyPet.entity.ai.AIGoalSelector.tick(AIGoalSelector.java:142)
at de.Keyle.MyPet.entity.types.EntityMyPet.bh(EntityMyPet.java:604)
at net.minecraft.server.v1_6_R2.EntityLiving.c(EntityLiving.java:1413)
at net.minecraft.server.v1_6_R2.EntityInsentient.c(EntityInsentient.java:306)
at net.minecraft.server.v1_6_R2.EntityLiving.l_(EntityLiving.java:1276)
at net.minecraft.server.v1_6_R2.EntityInsentient.l_(EntityInsentient.java:150)
at de.Keyle.MyPet.entity.types.EntityMyPet.l_(EntityMyPet.java:699)
at net.minecraft.server.v1_6_R2.World.entityJoinedWorld(World.java:1354)
at net.minecraft.server.v1_6_R2.World.playerJoinedWorld(World.java:1335)
at net.minecraft.server.v1_6_R2.World.tickEntities(World.java:1223)
at net.minecraft.server.v1_6_R2.WorldServer.tickEntities(WorldServer.java:480)
at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:572)
at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:226)
at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:486)
at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:419)
at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NullPointerException
at mc.alk.tracker.listeners.BTEntityListener.ede(BTEntityListener.java:185)
at mc.alk.tracker.listeners.BTEntityListener.onPlayerDeath(BTEntityListener.java:67)
at sun.reflect.GeneratedMethodAccessor543.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)
... 26 more