Mods folder to your desktop.localthumbcache.package from your Documents/Electronic Arts/The Sims 4/ folder.(EP13). This leads to UI buttons with no labels or notifications that appear in foreign languages like Czech or Polish despite the base game being in English. Primary Fixes for Language Strings 1. The EA App Repair and Reinstall
In the EA App , go to your Library, click the three dots on The Sims 4 tile, and select Repair . This forces the app to re-download any missing or corrupted language files. 2. Fixed Missing DLC Strings sims 4 language strings fix
Change your game's to a different language (e.g., if you play in English, switch to Spanish or French). Let the game download the small language pack. The Ultimate Guide to the Sims 4 Language