My Sims game wont load!

Whenever I try to play with my sims save it never loads. If I save it wont load and i lose my progress. if I go to manage worlds it will forever load. I checked and it's no problem with the mods-- just with the game. However when I made a new save it worked completely fine no problem. I really would like to play life and death in my old save so I really need this fixed.