Also same error as LordTakis and as you suggest to change to RU time, no one is going to do that for a game lol, when in other servers are no such a thing. You have to make changes/program, so such issue should not occur if time set is relevant to the error...
this problem with "Cannot run in this locale" is solved by replacing the file localization.ini
https://mw2.global/forum/topic/183729-can-not-run-in-this-locale/
and then an client error
give me your working game client and I'll see what I can do