The Sims 3 Pets, Supernatural and Showtime issues

Hi guys, I downloaded Supernatural and showtime yesterday. The game was working well all day. Today I played it for a few hours and suddenly it started crashing. What would happen is the game would freeze. The plumbob would carry on to spin or if I was in a group so would the group icon above the head however I would be unable to scroll, pause the game, interact with anything. The game was freezing up. This continued to happen until eventually the loading bar when opening back up would reach the end and the game would stop responding.

Seeing as I didn't like the additions from these EP's anyway I uninstalled them both. Fearing the game would continue to break with the wrong EP's crack file in I decided that I would uninstall my copy of pets too and download that.

Now I have pets installed I can get past the loading screen to the save select. Upon choosing my neighbourhood and clicking the tick to start the game nothing would happen. I can continued to click the tick and nothing happens.

Please help?

Thanks

Are you all the way up to date? Did you reinstall the fix after installing pets?

Are you using any mods or cc?