Re: My sims keep asking me to relaunch

@b_queen43  Is this what you're seeing?

https://answers.ea.com/t5/Technical-Issues-PC/MOD-RELATED-Sims-disappeared-from-household-Blue-flashing-square/m-p/8428174#M155726

If so, you can try loading a backup save, with no mods in place at all.  (Be sure to delete localthumbcache.package again.)  Here's how:

https://sims4.crinrict.com/eng/2014/09/save-games/#wiederherstellen