When you say not "downloading", you mean to install the program, right?  Or is the program installed and you are trying to download updates or something else?

Have you tried downloading from the website, as well as tried to download it from the 2019 program?

When you say you "restarted", does that mean you rebooted the computer?  If not, that is something you want to try.

If it still won't work, you may need to contact Support tomorrow.