I got a fatal error after I tried to enable a mod for the first time.
"An Insufficient Space Error Occurred when trying to write to disk.
Please free up some space.
I would have included the output.log file but it wasn't in the file folder for some reason. Restarting the steam client didn't fix the issue. I'll probably try reinstalling.
I installed mods from the steam workshop, then tried to enable the mods thru the game. This caused a fatal crash.