System error! Cannot enter W2

I purchased the 2021 Deluxe online version for Mac. I am able to enter everything fine until I get to Personal Income. When I click on update under Wages and Salaries, I immediately get an error code: "or Building Screen: /interview/federal". The pop-up states "Hmmm, looks like we've hit a snag. We recommend you revisit the last topic you were working on to make sure all your info's correct." Same thing happens when I click on "add w2" under Import Summary. I do not have any business deductions so the last topic was my Personal Info and there are no mistakes or missed entries. Please help. Thank you