Sims 3 Not working

I have the same problem and I can't start a new save or delete the save that seems to be causing the problem I can't do anything with the game

I too am having a hard time playing Sims 3. I have repaired it and I still can't play the game. It says there was a problem during start up and to check the log for details. 

Same here but yet it's working just fine on my brand-new laptop.

I don’t have one drive installed on my computer or an antivirus program 

king4510411  Are you getting the "error during startup" message when you first try to play?  If so, it typically requires a clean uninstall and reinstall of the game.  Here's how to do that:

[Read First] Running Sims 3 in Windows | EA Forums - 8323446

Tried it didn't work thanks anyway 

csummers2013  Are you getting the serious error, or something else?  If something else, what exactly happens when you try to play?  And what antivirus do you use?

I'm getting the serious error occurred while loading Sunset Valley.world.  My game is loaded directly to my pc (I don't use one drive) and I don't have anti-virus software loaded (trial version ended).  I put the Sims 3 on my brand new laptop and it runs just fine no issues.  My gaming pc is also brand new and my other Sims games (Sims 1&2 Legacy and Sims 4) run just fine.  I've uninstalled and reinstalled, cleaned the cache with the EA app and I've even repaired the game.  I livestream and was hoping to jump on the band wagon with streaming the Sims games but with 3 not working properly and since EA doesn't want to fix the problem I guess it's not happening.  I've un-installed 3 I've tried every suggestion and it didnt work and yes my pc meets the requirements to run it thats the first thing I checked.

csummers2013  Did you try playing in a new admin Windows account?  This would distinguish between issues with your main account and more global problems.  The account needs to be local, as in, not linked to your Microsoft account or any email address.