The game crashed to desktop while I was playing, and continues to crash when I try to load the save file. This issue started yesterday, but I was able to load a previous save to start from. Today, all my previous saves have this error message:

I'm deep into this campaign (turn 358) and would hate to lose this save file. I have over 900 hours in ES2 and the first time this error occurred.

Diagnostics - 2023'01'18 @2220'34