Apps are moving to developer hubs
Description
When logging in to your Autodesk account you see the message
Apps are moving to developer hubs
New APS Business model and pricing updates are here. APS is transitioning to developer hubs for app management. Move your apps to a hub by Jan 16 to maintain service.

Cause
This is shown because Autodesk changes how the APS apps are managed. Instead of being located directly within an APS account the apps will be located within a developer hub.
Solution
You can find instructions how to create a developer hub and migrate your apps on this Autodesk blog
When it comes to adding a subscription to your shopping cart you can select the free tier. This is sufficient for most purposes.
See also
* How to create a developer hub (Autodesk)