Playback Greyed out and none of the usual methods seem to work

Hi,

I have used Musescore for 5+ years with no major issues. I love the program. I just opened it up for the first time in a few months to find that the playback area at the top of the screen is greyed out. I cannot press play. I cannot even hear a note when I place it in the score.

I'm using a 2015 Macbook pro and Catalina OS. I've been using Musescore 2 since it was released. I thought perhaps it was the update I was missing so I downloaded Musescore 3 and that one is greyed out and doesn't work, too.

I've followed all the steps laid out on this page: https://musescore.org/en/node/96811

and still, nothing works. I've restarted my computer, re-installed musescore, made sure I have soundfonts installed, restarted audio and MIDI devices, and even reset to factory default... nothing works and I'm still unable to play any score or any type of sound.