nicolezarjj Does your computer run Windows or macOS?
For the original issue, does the freeze happen just after midnight? There's an issue here that's mostly mod-related, generally (but maybe not exclusively) MCCC trying to auto-marry sims. Disabling this setting usually fixes the issue.
Other than that, iif only one save is affected, there are troubleshooting steps you can try that don't involve repairing the game. For example, try playing a different household, one you've never played before. If it works, try moving your main household to a new lot. You don't need to save your progress; the point is to see whether the issue is the lot or the sims.
