2013-11-29 16:44:55 [SEVERE] Error whilst firing receive hook for packet
java.lang.IllegalArgumentException: Unable to find associated packet of PacketLoginRequest: Lookup returned NULL.
	at com.comphenix.protocol.injector.PacketFilterManager.getPacketID(PacketFilterManager.java:969)
	at com.comphenix.protocol.injector.spigot.SpigotPacketInjector.packetReceived(SpigotPacketInjector.java:413)
	at com.comphenix.protocol.injector.spigot.SpigotPacketInjector$1.intercept(SpigotPacketInjector.java:200)
	at org.spigotmc.netty.PacketListener$$EnhancerByCGLIB$$ae37f29b.packetReceived(<generated>)
	at org.spigotmc.netty.PacketListener.callReceived(PacketListener.java:58)
	at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:234)
	at net.minecraft.server.v1_6_R3.PendingConnection.d(PendingConnection.java:58)
	at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:138)
	at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:604)
	at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:240)
	at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:493)
	at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:425)
	at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)