if renaming your mods folder to _mods worked, that means something went wrong with a mod you installed or a meta file you changed (or its just gta being gta), either try and remember what mod you installed recently and uninstall it / revert the meta file, or, I'm afraid you are going to have to restart your mods folder.
Also, if you haven't already, install the required game configs.
**Modified Gameconfig**
https://bit.ly/3yt6yMy
mods > update > update.rpf > common > data
**Heap Limit Adjuster**
https://bit.ly/3iqYFBM
Place the .asi file into your main GTA V folder.
**Packfile Limit Adjuster**
https://bit.ly/3rXa2Vq
Place the .asi and .ini files into your main GTA V folder.