Game crash on certain date
 

So, the game currently crashes systematically on specific dates: for example April 13, 1942, 16:00 - June 20, 42, and others - complicated to make false patrols to advance the calendar.
I can't think of a possible reason: errors in the message translation mod, no, errors in the tonnage reduction mod ... ?

I would try to remove all the mods and check if the problem persists, and if it doesn't, load each mod one by one, until you find the culprit.