An error occurred during startup. Check the log for more details.

I was busy with the ultimate fix, and I wanted to open the launcher to update to 1.50, but then this message came.

Please tell me what to do..
I really do not want to reinstall all my games

If I want to startup through TS3.exe is says "Sims 3 doesn't work"

Hello,

Try this, please: https://games4theworld.forumotion.com/t6052-error-during-startup-see-log-for-more-details-fix
Also, if you follow these instructions, you don't need to open your launcher to update your game: https://games4theworld.forumotion.com/t1171-must-read-how-to-install-the-sims-3-correctly

Hello,

Thanks for your reply. Right after I posted the question I downloaded the update through the Ultimate Fix, and it worked. I just got too caught up in the game to notice that you already replied. :$

Thanks though,

Hello,

No problem, you're welcome!
Is there anything else we can currently help you with?