White Llama taking over game menus
Hello.
I started playing the sims 4 on a laptop for a couple of months now. I've gotten used to the slow loading and waiting for the game to boot up. I'm currently working on a legacy but all of a sudden, whenever I go to save, it takes so long to save. Whereas, before, yesterday, it didn't take as long. I played for a bit and when I went to save and finish I worked fine, I saved and went about my day. When I returned to the game a while after, I couldn't open it. The game kept crashing, I'm not sure how to read crash codes and I'm clueless when it comes to computer technical situations. I went back and removed all my mods, then repaired my game. But it still kept crashing. The progress wasn't entirely crucial. But the sims were either invisible or their side icons were showing this white llama. I went to save, and it would be saving for an hour and more. This happened after everyone in the household attended the festival of snow in Mt. Komorebi. Though, my wifi cut out randomly when I went to save. This happened before, and I went to recover a previous save and everything worked fine after that. But when I tried this again, my game would keep crashing. It's only for this save. I tried other ones and started new saves, yet this is the only one with this problem.
I've backed up my save files, but I'm still extremely confused. I tried the 50 50 method, but I didn't find anything wrong. I don't understand what the problem is. Any help with this would be super grateful. Again, I'm not very tech savvy, but I really don't want to lose progress of something I worked on for a while. I included screenshots of what I'm talking about.