This is not an isolated incident with a particular customer.
Here is an example:
Summary
[Start Time: 15/10/2017 8:00:25 PM]
[End Time: 15/10/2017 8:00:25 PM]
[Files considered for backup: 0]
[Files already present in your account: 0]
[Files backed up now: 0, Size: 0.00 B]
[Unable to continue the backup operation. Reason : There are no files to backup]
Details
[Version: 6.7.0.19 Release Date: 09/11/2017]
[Scheduled Backup]
[Scheduled Time: 15/10/2017 8:00:00 PM]
[Username: annett@xxxxxxxxxx]
[Start Time: 15/10/2017 8:00:25 PM]
[Backup location :'/DESKTOP/']
[Backupset Name]
[MappedDriveBackupSet_Online_Owner]
[Failed to continue the Backup operation. Reason: There are no files to backup]
[Throttle Value: 100]
"No files to backup" IS NOT A FAILURE! Please change the wording to something more suitable.