Sims disappearing

I'm having a problem with Sims in the My Sims Cozy Bundle game just straight up disappearing. Some sims can reappear only temporarily when kicking them out and moving them back in, but now it's got to the point where Buddy has disappeared completely. No matter how many times I open and close this game he's just wiped from my file, I even try to customize him in costume chest/salon chair/changing booth and the loading screen never appears, my sim just gets off the phone and the game resumes except I can't do anything because it's supposed to be in customize mode. Sometimes even the hotel is completely vacant for no reason, and sims aren't coming back home nor do they get visiters anymore. EA please fix this, I've worked really hard on this town and it's suddenly broken.