Thanks for reaching out about this. From your screenshot, it looks like you’re using djay Pro 1, which is unfortunately not supported on macOS versions Catalina (10.15) and newer. You can find more details about macOS compatibility in our FAQ:
For this reason, since you said you upgraded your Mac recently to the new Monterey (12) OS, this is probably why your iTunes playlists aren’t showing in djay Pro 1 anymore as expected.
What I would suggest is that you download our newest DJ app, djay Pro AI for Mac, on your Mac and start using that moving forward. The app may have changed a bit from the older one, but it still includes all of the functionality you’re used to as well. When you download and install the app, it should recognize and connect with your iTunes library, and show all of the playlists you have there in the iTunes library source.
Let me know if you have any other questions. I’m happy to help.