Go to your installation folder (usually C:\Program Files\EA Games\The Sims 4\Game\Bin ). TS4.exe and TS4_64.exe .
Before attempting this, back up your original files by copying them to a separate 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
If a mod is outdated and the creator is no longer active, or if you want to customize a mod for your language, you can fix it yourself. sims 4 language strings fix
If a standard repair doesn't work, there's a specific trick that has helped many players. According to a verified solution from the official Sims forums:
If repair fails, manually replace the string package:
The easiest way to fix string mismatches is to ensure your game client matches your desired language. Note that in most cases, the game and the launcher (EA App/Steam) must be set to the same language. Steam Users : Right-click The Sims 4 in your library, select Properties , go to the Go to your installation folder (usually C:\Program Files\EA
Right-click The Sims 4 -> Properties -> Language. Windows Registry (Last Resort): Press Win + R , type regedit , and hit Enter. Go to: HKEY_LOCAL_MACHINE\SOFTWARE\Maxis\The Sims 4
If the text returns to normal, an outdated mod was causing the conflict. How to Find the Broken Mod Do not just throw your mods back in. Use the : Split your desktop Mods folder into two halves. Put one half back into the game directory and launch it.
When searching for a "sims 4 language strings fix," you might see specific codes. Here is a cheat sheet: (EP13)
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Go to your Documents > Electronic Arts > The Sims 4 folder and delete the localthumbcache.package file. This is the most common fix for string errors caused by outdated mods. Repair the Game: