Sims 4 on my PC crashes constantly!!

I play sims 4 on Pc. And since the last updates my game wont start for 2 or 3 tries. And when it does load it crashes when i travel and anytime i try and save. It crashes when my sims are walking around their home too. it just crashes constantly! I  did have mods in a t first and it crashed. So i took out all my mods and started a new vanilla save and it still crashes! I need help!