My game won’t save!!

Hello! Just to start, whenever I try to save my game it gives me this error code: “Game Failed to Save. Error Code: 514:bcad3a8b:91d750e5.”

This error only happens in this one save file. I’ve tried save as and it gives me the same error code and doesn’t save! I don’t know what to do! I have mods installed but I couldn’t figure out which was causing it, especially since it’s only in this one save.

I did try to move into a new game file but after I downloaded the house and tried to place it, it just said ‘system error’ and nothing happened. (I do have cc build items but I’ve never had that issue.) I have family photos in the house and idk if that’s causing this.

i really do not want to lose this save! It’s a legally I’ve had for awhile and I’m almost on the 4th generation. What do I do?