Hi Verdolini,
I had this problem back in April. At that time Mac user sites were reporting an exploit that caused unexpected crashes because of some illegal write permissions that had the potential to corrupt program files. TurboTax was behaving as you described for me as well, but I also had a weird unexpected crash while using another program. Apple provided an immediate patch, but only for Monterey. You need to get this. I don't know if they have patched earlier versions yet.
Even if you update your OS to prevent the Mac crashes, you will still need to reinstall Turbotax. It is not enough to delete the main program--if the installer finds that support files are already in place it won't replace them and your problem will persist. TurboTax created a list of all the file you need to delete to get a clean re-install at: https://ttlc.intuit.com/community/installing/help/remove-uninstall-turbotax-for-mac/00/26050
It's a pain but this process worked for me!
Good luck!
