05:06:17 [INFO] Disconnecting N3X15 [/127.0.0.1:52087]: Internal server error
05:06:17 [WARNING] Failed to handle packet: java.lang.NullPointerException
java.lang.NullPointerException
        at net.minecraft.server.World.b(World.java:1859)
        at net.minecraft.server.World.getEntities(World.java:904)
        at net.minecraft.server.ServerConfigurationManager.c(ServerConfiguration
Manager.java:117)
        at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:96)
        at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:33)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:91)
        at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:401)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:311)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
>