Autodesk customers have been using A360 drive for a while now. Autodesk offered 5GB storage for a free account.
Autodesk decided to stop providing it for free. As announced on the Autodesk website: https://a360.autodesk.com/a360-drive-update/
If you are a subscription customer, then this doesn’t affect you. But if you use free A360 storage, you need to find another cloud storage such as Dropbox or OneDrive.