The error message is related to a virtual disk. One of them could be in a faulty state. I would go through your disks on the portal and see if any of them show in a faulty state. Another alternative is to use GET https://management.azure.com/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/disks?api-version=2020-06-30
by your resource groups and determine which disk(s) reports the same error.
Regards,
Ryan