Here is a review of this notorious error code, not just as a software bug, but as a case study in the friction between creative tools and corporate control.
Close the software, reopen it, and sign back in to refresh the authentication token. Update the Licensing Components Autodesk Access autodesk license status 2100 hot
Sign in to your Autodesk Account. Go to All Products and Services > View Details to see serial numbers and seat counts. Here is a review of this notorious error