BackWpup jobs suddenly stopped running

Hi

I’ve been happily using BackWPup for a while – but all of a sudden, backups have simply stopped executing. When I try to run a backup job (using the drop-down selector in WP), I get a “Job “Full backup 01″ started.”-message – but nothing happens after that. Attempting to run a different backup job (say, “Full Backup 02”) doesn’t trigger anything either. The “Job “Full backup 01″ started.”-message remains. I’m using version 3.1.1, and the last successful backup was completed on Jan 8th.

Any idea what’s wrong – and how to resolve it?

Thanks in advance

http://wordpress.org/plugins/backwpup/