Re: Game won't start due to language error after September 2019 update
@irynadakota There was a Sims 4 patch released yesterday, and it's possible that simply updating will fix the issue, although I wouldn't count on it. Otherwise, you might need to experiment a bit.
In your Origin library, is the Sims 4's language still listed as the same one you've been using? Right-click (or control-click) on the TS4 icon in your Origin game library, select Game Properties, then Advanced Launch Options. If it's showing a different language—even most region-locked versions have a few options—change it back, then right-click on the TS4 icon and select Repair Game. If the correct language is showing, toggle it to a different one (if available) and back, and repair the game.
If that doesn't help, please check which language file is in the game's program files. Open Applications > The Sims 4, right-click on the game's icon, and select Show Package Contents. From there, the path is Contents > Data > Client. You should see a file labeled Strings_something (mine is Strings_ENG_US.package). Try removing this file (right-click and select Move to Trash, but don't empty the trash yet, in case you need to restore the file) and then repairing the game in Origin again.
