Forge Crash

2012-12-09 01:03:28 [INFO] [Minecraft] FallingFist99[/127.0.0.1:61611] logged in with entity id 51691 at (-37.90399917499585, 64.0, -1046.8795836879638)
2012-12-09 01:03:28 [INFO] [STDOUT] Loading Player: FallingFist99
2012-12-09 01:03:28 [INFO] [STDOUT] Sending serverside check to: FallingFist99
2012-12-09 01:05:12 [SEVERE] [ForgeModLoader] A critical server error occured handling a packet, kicking 51691
java.lang.NullPointerException
	at qx.a(EntityPlayer.java:1544)
	at gm.a(ServerConfigurationManager.java:336)
	at iv.a(NetServerHandler.java:826)
	at cx.a(SourceFile:30)
	at cg.b(TcpConnection.java:451)
	at iv.d(NetServerHandler.java:82)
	at iw.b(NetworkListenThread.java:55)
	at ht.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:691)
	at ho.r(DedicatedServer.java:252)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:587)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:494)
	at fy.run(SourceFile:856)
2012-12-09 01:05:12 [WARNING] [Minecraft] Failed to handle packet for FallingFist99/127.0.0.1: java.lang.NullPointerException
java.lang.NullPointerException
	at qx.a(EntityPlayer.java:1544)
	at gm.a(ServerConfigurationManager.java:336)
	at iv.a(NetServerHandler.java:826)
	at cx.a(SourceFile:30)
	at cg.b(TcpConnection.java:451)
	at iv.d(NetServerHandler.java:82)
	at iw.b(NetworkListenThread.java:55)
	at ht.b(SourceFile:30)
	at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:691)
	at ho.r(DedicatedServer.java:252)
	at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:587)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:494)
	at fy.run(SourceFile:856)