LitePets 1.3.4 Errors while Flying

2013-02-04 12:16:29 [SEVERE] Could not pass event EntityDeathEvent to PlayerHeads v2.9.0082
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_4_R1.event.CraftEventFactory.callEntityDeathEvent(CraftEventFactory.java:315)
	at net.minecraft.server.v1_4_R1.EntityLiving.dropDeathLoot(EntityLiving.java:930)
	at net.minecraft.server.v1_4_R1.EntityLiving.die(EntityLiving.java:878)
	at net.minecraft.server.v1_4_R1.EntityLiving.damageEntity(EntityLiving.java:758)
	at net.minecraft.server.v1_4_R1.EntityMonster.damageEntity(EntityMonster.java:39)
	at net.minecraft.server.v1_4_R1.Entity.y(Entity.java:328)
	at net.minecraft.server.v1_4_R1.EntityLiving.y(EntityLiving.java:310)
	at net.minecraft.server.v1_4_R1.Entity.j_(Entity.java:241)
	at net.minecraft.server.v1_4_R1.EntityLiving.j_(EntityLiving.java:508)
	at net.minecraft.server.v1_4_R1.EntityMonster.j_(EntityMonster.java:24)
	at net.minecraft.server.v1_4_R1.EntityZombie.j_(EntityZombie.java:121)
	at net.minecraft.server.v1_4_R1.World.entityJoinedWorld(World.java:1332)
	at net.minecraft.server.v1_4_R1.WorldServer.entityJoinedWorld(WorldServer.java:548)
	at net.minecraft.server.v1_4_R1.World.playerJoinedWorld(World.java:1313)
	at net.minecraft.server.v1_4_R1.World.tickEntities(World.java:1191)
	at net.minecraft.server.v1_4_R1.WorldServer.tickEntities(WorldServer.java:445)
	at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:580)
	at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
	at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)
	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)
	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NullPointerException
	at org.shininet.bukkit.playerheads.PlayerHeadsListener.EntityDeathHelper(PlayerHeadsListener.java:125)
	at org.shininet.bukkit.playerheads.PlayerHeadsListener.onEntityDeath(PlayerHeadsListener.java:95)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:601)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
	... 24 more