I ran into the same issue where after paying for CA efile fee, the app crashed and then it wouldn't restart. I deleted all the Library files mentioned above, uninstalled and reinstalled the app, restarted my Mac and still the app fails to start.
I called support and was on the phone with them for over 2 hours, they were very helpful but we were not able to resolve the issue.
I am still unable to run TurboTax Premier 2019 even after Intuit support provided me a new download.
Waiting for a solution.
