Been trying to wrap my head around this for a while, my girlfriend is unable to connect to my server since today. No update, no changes. Just the next day, and we managed to get a log out of it. I've tried to read it myself but I can't figure out what's happening.
EDIT:
Here's a paste bin,
EDIT:
Here's a paste bin,
crashlog - FTB Paste
paste.feed-the-beast.com