I have encountered a problem in multiple games that is starting to prevent me finishing them, as it seems to cause the game to crash once things are far enough advanced. It's like a MAF, only it can happen upon freshly loading the game, and sometimes I can reload and get past it, only for it to happen again a few turns later. It shouldn't be to do with the computer's limitations (hopefully!), as I'm playing on a MacBook that's less than a year old and the games are standard speed/normal size. I attached a crash report and a save. I am currently unable to get beyond the current turn on the save. Thanks for any help you can provide!
I'm able to load and play that saved game without any crashes for at least 10 turns. Tried reloading 5 times, still fine. The crash you got isn't an MAF. It could be a number of things, but it'smost likely related to a civil war. And sure enough, one occurs on that turn in your game. Looking back through my change log, I fixed a civil war error that could cause that exact crash back in 1.23.1. Are you perhaps running 1.23? 1.23.2 is the latest 'stable' version, I suggest downloading and (re)installing that, then trying to load and continue the game.
If that doesn't help, let me know.