@HippieWiccan13 wrote:
So...if I turn off story progression then I won't get the error anymore?
No. You can get this error without running SP.
The issue usually rears its ugly head if you wait too long before saving your game, especially if you do a lot of switching back and forth between families in Edit Town mode or do a lot of building. As long as you make sure you save every two or three sim days, after you've switched families or done some massive building, you should be okay. It's when you keep saving after an hour or two of game play when you're more likely to run into this issue.