Open Sims 4 Studio and open your mod's .package file. Navigate to the Tools menu and select Extract Tuning . If the game patch added new files, ensure your Sims 4 Studio is updated to the latest version so it can read the new game files. Step 2: Use the STBL Cheat Sheet
Relaunch the game. This forces the engine to rebuild the string indexes from scratch. Method 3: Force a Language Repair sims 4 language strings upd