java.lang.NullPointerException
        at com.gomysql.gwinans.DeathNotifier.DeathNotifierEntityListener.onEntityDeath(DeathNotifierEntityListener.java:39)
        at org.bukkit.plugin.java.JavaPluginLoader$56.execute(JavaPluginLoader.java:635)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:321)
        at net.minecraft.server.EntityPlayer.die(EntityPlayer.java:141)
        at net.minecraft.server.EntityLiving.damageEntity(EntityLiving.java:391)
        at net.minecraft.server.EntityHuman.damageEntity(EntityHuman.java:436)
        at net.minecraft.server.EntityPlayer.damageEntity(EntityPlayer.java:179)
        at net.minecraft.server.EntityLiving.a(EntityLiving.java:489)
        at net.minecraft.server.EntityHuman.a(EntityHuman.java:866)
        at net.minecraft.server.Entity.a(Entity.java:641)
        at net.minecraft.server.EntityPlayer.b(EntityPlayer.java:359)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:363)
        at net.minecraft.server.Packet10Flying.a(SourceFile:126)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:84)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:451)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:361)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)