if you have over 200 mods running you need to take them out of the mod folder and then you need to slowly put them back in depends how much your pc can take at once
@vampof9tt Okay, so you know that the issue is something in your old Sims 4 folder. It's most likely a mod, so test those first; you can do so in small batches, or use the 50/50 method if you have a lot of files.
https://modthesims.info/wiki.php?title=Game_Help:Finding_Problem_Custom_Content#The_50.25_Method
When you've sorted through your mods and custom content, you can try adding the contents of the saves and Tray folders. It's better to copy over the files rather than the folders.
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