Need help with Tekkit Main Server!

[Chase Mostat]

Hello. I am running a Tekkit Main server, on the latest recommended build. Now I am using MCPC+ latest for 1.5.2 to use plugins. The issue is, when I try to sign into my server, I will either get an ID Mismatch error. Or the game will crash. Does anyone know what the issue is?

[Dewfire]

Paste more of the log?

[Kalthas]

So this may sound stupid but are you sure you copied all the correct tekkit stuff over? Last server I set up I was so focused on getting MCPC+ put in the right place I forgot to do that and I had ID mismatches similar to what you described. double check to be sure.