[ARCHIVED] Crashing and Endless Loading

Hi this is happening to me. 

It started when I had mods/cc in my game, but it's still happening since I went vanilla. I did every troubleshooting things possible (including re-downloading my game, etc). I even put the majority of my saves onto an external drive in case I had too many saves? idk. I also uploaded this family to the gallery and tried making a new save where I downloaded them. Still never loads. I can load into build mode of their house and I can load into other houses/families in the world. When I start in another family and then try to switch control to the other family (by clicking on the front door) it still doesn't work. 

A version of this has happened to every one of my saves and I'm kind of at my wit's end. The game just isn't fun anymore, because I can't play. In the past I could make it ~1.5 generations before something game breaking would happen. Since getting Horse Ranch and For Rent, I've made it from young adult - adult and then can't play. I recorded what happens to my sims initially - basically the sims keep animating but can't stop. They are still animating when I press pause, and time continues to pass. Sometimes I can revert to a previous save and make it past that time point, but eventually it happens again, and it reaches a point where reverting to a previous save doesn't work anymore. This is what happened to my most recent save, and now I can't load into their family anymore. I can send a recording of this in game if you want me to, it's just on my external hard drive. 

Any help would be appreciated, thanks!

ETA: It's the Vanilla Barbie Doll family on my gallery