21:16:53 [SEVERE] Could not pass event PlayerDeathEvent to xTeam v1.6.5
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 org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:322)
        at net.minecraft.server.EntityPlayer.die(EntityPlayer.java:311)
        at net.minecraft.server.EntityLiving.damageEntity(EntityLiving.java:663)
        at net.minecraft.server.EntityHuman.damageEntity(EntityHuman.java:595)
        at net.minecraft.server.EntityPlayer.damageEntity(EntityPlayer.java:353)
        at net.minecraft.server.EntityHuman.attack(EntityHuman.java:762)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1054)
        at net.minecraft.server.Packet7UseEntity.handle(SourceFile:36)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:282)
        at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:111)
        at net.minecraft.server.ServerConnection.b(SourceFile:35)
        at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:561)
        at net.minecraft.server.DedicatedServer.q(DedicatedServer.java:213)
        at net.minecraft.server.MinecraftServer.p(MinecraftServer.java:474)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:406)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:539)
Caused by: java.lang.NullPointerException
        at me.protocos.xTeam.TeamScoreListener.onEntityDeath(TeamScoreListener.java:33)
        at sun.reflect.GeneratedMethodAccessor156.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:616)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:339)
        ... 20 more