Check and "Script Mods Allowed" . Restart the game for changes to take effect. 🔍 How to Find the Items
In Build/Buy mode or Create-A-Sim (CAS), open the filter panel on the right and select Content > Custom Content . Search Bar: Type "Aissa" or "1001" into the search bar.
Find Aissa 1001 set.zip in your Downloads folder.
If you use Sims 4 Studio , it is helpful to run a batch fix on older CC sets to ensure they work with the latest game updates (like the "High School Years" or "Infants" updates).