10:36:41 [INFO] Shoot221 [/127.0.0.1:56340] logged in with entity id 8631
10:36:41 [INFO] Disconnecting Shoot221 [/127.0.0.1:56340]: Internal server error
10:36:41 [WARNING] Failed to handle packet: java.lang.IllegalStateException: Entity is already track
ed!
java.lang.IllegalStateException: Entity is already tracked!
        at net.minecraft.server.EntityTracker.a(EntityTracker.java:72)
        at net.minecraft.server.EntityTracker.a(EntityTracker.java:62)
        at net.minecraft.server.EntityTracker.a(EntityTracker.java:51)
        at net.minecraft.server.WorldManager.a(WorldManager.java:17)
        at net.minecraft.server.World.b(World.java:750)
        at net.minecraft.server.WorldServer.b(WorldServer.java:94)
        at net.minecraft.server.World.a(World.java:1590)
        at net.minecraft.server.Chunk.d(Chunk.java:470)
        at net.minecraft.server.ChunkProviderServer.c(ChunkProviderServer.java:75)
        at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:33)
        at net.minecraft.server.PlayerManager.a(PlayerManager.java:37)
        at net.minecraft.server.PlayerManager.a(PlayerManager.java:76)
        at net.minecraft.server.ServerConfigurationManager.a(ServerConfigurationManager.java:106)
        at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:87)
        at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:68)
        at net.minecraft.server.Packet1Login.a(SourceFile:46)
        at net.minecraft.server.NetworkManager.a(NetworkManager.java:198)
        at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:34)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:87)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:368)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:283)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:375)
>