Yesterday my Cloud backup failed and as usual, I shutdown the hub, unplugged, etc and all is back to normal except for this alert.
No matter what I tried I can not get rid of this notification.
Hardware version
C-8
Platform version
2.3.9.158
Did you try a manual cloud backup?
Just did and I don't know if that cleared the problem because Cloud Backup failed again... 
And, as usual, my zwave is offline again and after a restart, the alert indicates I now have 2 notifications 
UPDATE: Rolled back to v 2.3.9.154 and tried Cloud backup again. It worked and the alert notification has disappeared.
That's not good....
