Ideas
About 50% of the time when I save my game, it crashes. I'm on PS5. I recently got Businesses and Hobbies on sale, I only noticed these crashes after that. Sometimes it crashes when I change lots, not as often as saving. I find that not overwriting an older save reduces the change of a crash and also making an entirely new save game file instead of overwriting also reduces the risk. I have to save literally every 10 minutes or less to minimize progress loss. I hold my breath everytime I save because I know there's a high chance I will hear the dreaded beep.
I've already rebuilt my database, cleared cache and reinstalled the game and EPs several times. I'm not doing it anymore because it won't help. I've also tried installing it on both console storage and my ssd neither one made a difference.