TS3 Ambitions torrent conflicting with already purchased EP's from origin?

So, I downloaded the Ambitions torrent and did all the required steps, but it's still not working. When I tried to load up my saved game, the screen turned completely white and an error message popped up saying- "something is seriously conflicting with the Rodie household" or something along the lines to that. The next time I tried I disabled all expansion packs besides Ambitions and created a new gameplay with the Twinbrook town. When I went to pick a set of sims to play with, it crashed and it wouldn't let the sims walk anywhere and there was no place trackers/images on the town map- I couldn't go anywhere besides home. Plus, there were continuous pop up messages regarding my Nrass mods, causing them to not work and all the sims to be stuck. I would just like to know if there's something that I can do to fix it? Or if the possibility of this happening is because of me not installing your version of the base sims 3 since I already bought the origin version ? Or will I just have to uninstall and try reinstalling again? Thanks in advance. 

I think the easiest way to repair the game will be via ZLOrigin.
Log in to zclient and then zlorigin, rightclick on the picture of the Sims 3 and select Repair.
All missing DLC's will also be downloaded and installed.
Don't let the official Origin update/repair the game because you might loose all pirated DLC's again.