Game crashing

My game keeps loading and then crashing. Sometimes it will pop up with a crash report, and other times, it is just a pop-up window that says the Sims 4 can't load or something like that. I have a lot of mods/cc (around 20,000), but they are all organized into separate folders within the mods folder. I have tested each folder by taking it out and trying to run my game to see if there is an issue within a specific folder. I have also removed everything within the mods folder, but the problem persists. I have tried to repair my game, done batch fixes with sims 4 Studio, and used Sims 4 mod manager. The last time it loaded my game was running fine until I tried to have my sim travel and when it loaded the entire UI bar was gone and my sim was invisible. I wasn't able to control them at all or do anything besides leave the game.