Problem with multiple computers

Hi! I have CC on my work laptop and it works fine. I have also used it on my home computer when working from home without any problems for a couple of years.
But recently I have started to get the message "

Your Illustrator CC license has expired.

But you can still use this application for 40 more days.

But I only get this message on my home computer. Have updated all apps. Tried to sign out and login again, but it doesn't help. Checked with my job and the license is paid for.

What can I do to keep using it on my second computer?