After you file

I have this same issue. 

- Apple Mac Mini running macOS Catalina Version 10.15.4

- Intuit turbotax Deluxe 2019 2019.r30.042

Taxes had been complete in late April. In late May, I attempted to re-open the file and received the "has the wrong tax year or some other issue that prevents us from opening" error

The best answer I found on this site was to completely uninstall and reinstall turbotax. Despite that (repeated attempts), I'm still receiving the same error.

 

What other steps might I try?