Game shutting down for no reason.

Hi, first time Ive posted. Im in the UK if that matters and play on laptop. Asus Tuff. Windows 11. 

I've played sims on a gaming laptop for over a year no issues. About 2 month ago I downloaded some MODS and CC for the first time ever, the childbirth mod and some gym equipment. Anyway, after a few weeks my game shut down so I deleted the mods and CC from the folders (so that's deleted now right? Or do I need to do something else ?)

I re opened my game since deleting the mods etc and played for hours with no issues. Just the mods and CC were not in my game.

So tonight I've played normal and suddenly my game shuts down?! 

I followed advise online about update drivers, move your sims4 folder to desktop, play offline, repair game, clear caches etc.. reopened the game and now furniture is disappearing whilst my mouse has hold of it. 

It just keeps shutting down. What's happened. Can I fix this? I'm not great with computers and need a lot of detail about what to click and where it is etc and if I need to move folders back and things as I'm not the best at this stuff. Thanks