I installed WordPress and BackWPup on a new web host. Now I have two issues which I suspect might be related.
The first is the dreaded:
WP-Cron isn't working, please check it!
I would naturally suspect that this is the web hosts's fault, but I also noticed that BackWPup can't show the size of the database in the Jobs list.
In the 'Information' column instead of the size there's a spinning graphic. This stayed on even after I waited for several minutes.
This suggests to me that BackWPup somehow does not function properly, and this might also explain the WP-Cron issue.
By the way, manually activating backup jobs works.