Please help!

I recently downloaded Sims, and I read through all the Installation guides. My only obvious mistake was that I didn't check the game was working between installations. When I'd finally installed all the expansions I wanted, I clicked to open the game. It said that Sims wasn't working and Windows was looking for a solution. I went over my expansions trying to find where the error was located, and only found a problem in High End Loft Stuff, so I deleted that. The error still occurred, so I started working backwards, uninstalling different expansions and trying in between. After I'd installed a couple expansions, the Sims didn't even try to load. I'd open the Launcher, and click play, and then the Launcher would go away and nothing else would happen. I decided to try again from scratch, so I uninstalled every single expansion. Now I'm reinstalling, and the problem is persisting. What do I do?
 

Hi there

I do hope, that I can be of help to you.
Did you get The Sims 3 Ultimate Fix and followed the Instructions?
If not, I recommend that you do
https://games4theworld.forumotion.com/t752-the-sims-3-ultimate-fix-should-fix-most-of-your-problems