Sims 4 Error 800/801

I have been having ongoing issues for the past year. I often get lot errors 800 and 801 when trying to load them. I also will have lots that take a long period to load and end up crashing.  Now, my entire map of Willow Creek is unplayable. The house value have also dropped significantly.

I read it can be due to residential rentals, but I had this issue before. Willow Creek became corrupt after I added residential rentals. I try to remove them, but certain ones have an error and I cannot get past.

How can I fix my save? It is not possible to load a back up. Any advice will help EA Support did not have a solution or even a reason why this would happen.