What does this mean? Code: 2011-04-26 19:51:08 [SEVERE] java.io.IOException: Bad packet id 100 2011-04-26 19:51:08 [SEVERE] at net.minecraft.server.Packet.b(Packet.java:84) 2011-04-26 19:51:08 [SEVERE] at net.minecraft.server.NetworkManager.f(NetworkManager.java:130) 2011-04-26 19:51:08 [SEVERE] at net.minecraft.server.NetworkManager.c(NetworkManager.java:229) 2011-04-26 19:51:08 [SEVERE] at net.minecraft.server.NetworkReaderThread.run(SourceFile:68) 2011-04-26 19:51:08 [INFO] /(IP CENSORED) lost connection Bukkit version: 684