I'm having a similar issue on my Mac; I was almost finished with my taxes when suddenly the program quit. I was unable to get TurboTax Deluxe 2020 to reload after that crash. I attempted restarting my machine, then uninstalling, restarting and reinstalling. The experience is the same, the program attempts to start but ultimately does not. I attempted looking for the cached crash folder but was not seeing anything related to t he Turbo Tax application crash in there. Unfortunately, after a call with Turbo Tax tech support there does not appear to be a solution so I've requested a refund and will instead be going with H&R Block's software for my taxes this year.
