sims 4 game is crashing after it tries to load saved game.

gracebark​  Can you load a different household within the same save?  Click the Load Game button and choose one you've never played before.

If this works, move your main household to a different lot and see whether you can play them there.  And try to load their old house without them in it.  You don't need to save your progress; the point is to find out whether the problem is limited to the sims or the lot they're living on right now.

Please continue to test with your Mods folder removed.