Backup plans that have been running successfully have suddenly started to fail. The issue seems to be that if a plan notification is selected then an error occurs. The message "Cannot reach CloudBerry Lab email service, check connection or disable notifications"
This issue is related to DNS issues we're having with our provider on one of our servers. The problem was supposed to be addressed today, but it appears it's still resolving. DNS settings are currently migrating across routers. I'll report back on the forums when the issue is fully resolved.