Sims 3 won't launch on Mac

It won't open on my windows as well and I played the other day...

I may have fixed my own problem. Other mac users take note. I could get the game to launch from an alternate account on my same computer (i created a second account on my mac / opened the EA app from that account/ logged into my EA account there and tested the game and it worked. 

I was preparing to uninstall the game and i took my saves, downloads and mods folders on to the desktop and then i tried to start the game again and it worked. I remember this happening before. it has something to do with the launcher and the sims 3 store which is buggy on the mac version. now i'm reinstalling all my items. 

robinbear80  Aside from your Store downloads and any custom content you'd install through the launcher, the Downloads folder also contains a few items related to your account itself (the email tied to your account, any badge progress you've made, that sort of thing).  I'm surprised that anything in there, as opposed to a file in Mods, would prevent the game from loading at all, but I guess it's not impossible.

Zemoxia25  If you still need help, it would be best if you created your own thread describing your issue, in more detail, since you're running a different OS than the original poster in this thread.