@sundancrThese files in your save probably broke when you tried to enable the game with mods for the first time after the update.
Unfortunately, these files cannot be repaired.
If you don't want to lose the family you played, just save it to your library just like their home and start a new game. You have MCC so you can easily rebuild their funds. And this is the only thing besides the friends that this family will lose. The career level will remain the same. Even for books written by the sim in the previous save, he will receive a salary.
