The hub backups not running

Hi good folks!
I`m trying to figure out the snapshot pro and the hub is working. I have sat several sites on a backup plan, and some backups run, others do not. I have tried to figure out why some of the backups run and others dont, but I cannot say. All have the key and a plan.
Mostly the sites are hosted at siteground, but not all. and the sites have different plugins and themes. Can anybody help me out be taking a look at my setup and see if there is something I`m doing wrong?