CatLaser

My friends and I cannot to connect to my tekkit server. I use caspertheghost's tekkit server launcher, and I am using OS X Mountain Lion. My server says this: 10:37:45 [iNFO] /127.0.0.1:50603 lost connection 10:37:48 [sEVERE] java.io.IOException: Received string length longer than maximum allowed (107 > 16) 10:37:48 [sEVERE]at net.minecraft.server.Packet.a(Packet.java:120) 10:37:48 [sEVERE]at net.minecraft.server.Packet1Login.a(Packet1Login.java:38) 10:37:48 [sEVERE]at net.minecraft.server.Packet.a(Packet.java:79) 10:37:48 [sEVERE]at net.minecraft.server.NetworkManager.h(NetworkManager.java:152) 10:37:48 [sEVERE]at net.minecraft.server.NetworkManager.c(NetworkManager.java:270) 10:37:48 [sEVERE]at net.minecraft.server.NetworkReaderThread.run(SourceFile:76) 10:37:48 [iNFO] /127.0.0.1:50609 lost connection Also, any idea what the error message: "The server requires you to have the following mods:" "mod_TubeStuff 49.1.1" means? I cannot connect to my friend's server. Thanks.