First, follow Husk's advice about other mods installed. if so, disable\delete them. Do you have the latest version of this app installed? (every time EA updates the game modders have to update their CC as well for it to work, usually) Do you have the resources to run this game with mods. (im talking memory and the power of your pc}. If for example, your running this game on a system from 10 years ago, it might not be enough even though the game itself is a few years newer). The base game resource recommendations are just that, recommendations. Always try to exceed that before any add-ons. Try lowering or turning off some features ( in the game options) of the game itself. Hope this helps but not knowing all the details makes any recommendations a guess.