I found a link for Mac. You need to install the updates. Quit Turbo Tax and reopen it a couple times for the updates to get installed on Mac. Go up to the Apple bar at the very top and File-Quit
It is not necessary to close TurboTax. Just use the top Mac menu bar: TurboTax -> Check for Updates.
Troubleshooting Mac update
https://ttlc.intuit.com/community/updating/help/troubleshoot-turbotax-for-mac-updating-issues/01/255...
