None of the databases are backed up.
The request to back up a set of databases could not be completed because at least one of the following conditions is true: 1) all of the databases are dismounted 2) a backup is in progress on another replica 3) a backup has been made more recently than specified by the /MINimumbackupinterval parameter
Processing stops.
Ensure that the database you want to back up is mounted, or another backup is not in progress, or change the /MINimumbackupinterval parameter.