Hello!
First of all, I wanted to thank very much the author of the mod and the authors of the submods. This is a huge job, which is simply excellent - despite the graphics lagging behind, the game is very interesting to play, interesing to immerse yourself in the plot. I already forgot which was the last game, stayed until the morning with the words "one more turn".
Most likely, I'm writing in the wrong place, because the error says to contact the OpenXcom forum. But I'm going through the mod for the second time, that version 2-3 years ago, I successfully completed, which means that the problem is either in the current version or submods, and not in the OpenXcom engine.
Secondly, I could not open the .dmp file and see for myself what the error was.
The game escape to desktop at 18-30 on June 29, that is, the rules that include new packs of enemies and missions have nothing to do with it - after all, they work according to the script at the beginning of the month.