Turbo Tax Desktop Not Responding

I just tried to open the desktop version of TurboTax 2020 on my 2020 MacBook Pro and it will not open.  The icon bounces for a while then stops.  After several minutes, it says there are no updates.  Then it just sits there unresponsive.  I have to force-close it.  I used this earlier this year.  It worked fine.  I tried deleting the app, downloading and reinstalling it, but that made no difference.  This is the small business version of TT.