Oh my gosh. THANKS uncle_fedor, you're the best!
You should get the money instead of BIStudio ;)

Your fix works for now, you're great thanks man!

Confirm server crash with following error popup:
Bad animation file format in file 'a3\anims_f_kart\data\anim\sdr\cts\starterpistol\acts_starterpistol_in.rtm'.

Crash happens while Server is "reading mission".