x1tms357mhit Try adding your mods back, alone, and see what happens. If everything is fine, try the contents of one other folder, and then another, and so on. Here's a description of everything in the user folder so you'll know what you might want to preserve:
https://sims3.crinrict.com/en/2011/01/faq-user-files.html
If adding your mods back causes problems, split them and retest until you find the culprit. The 50/50 method can make the process much more efficient:
https://modthesims.info/wiki.php?title=Game_Help:Finding_Problem_Custom_Content#The_50.25_Method
This works equally well for .package-based content. Store content should be fine, but for custom content installed through the launcher, you can use Method by Mell on this page to try to find the bundle that contains the bad cc:
https://sims3.crinrict.com/en/2011/01/tutorial-how-to-get-rid-of-unwanted-custom-content.html
If you run into trouble with any part of this process, feel free to ask for help.