After backing up my server the PMMCli-Daemon just keeps sending dozens of emails like the following.

I tried deleting all completed backups from the Plesk interface, but the emails just keep coming.
I did notice one job stuck under the "Current Backup Tasks" tab. It's been there a few days and was only configuration data (small) and says it's 100% complete. But there seems no way to delete it. (It's prefix is "test")
However, this does not seem to be the job causing the problem, you'll notice the "postmaster" prefix on the job in the screenshot? I started that job yesterday, it ran to completion and was moved to the "Server Repository" tab.
1. Is there a way to kill this job or otherwise reset the backup system?
2. Can I delete that other (prefix "test") job from "Current Backup Tasks" tab?
Thank you.

I tried deleting all completed backups from the Plesk interface, but the emails just keep coming.
I did notice one job stuck under the "Current Backup Tasks" tab. It's been there a few days and was only configuration data (small) and says it's 100% complete. But there seems no way to delete it. (It's prefix is "test")
However, this does not seem to be the job causing the problem, you'll notice the "postmaster" prefix on the job in the screenshot? I started that job yesterday, it ran to completion and was moved to the "Server Repository" tab.
1. Is there a way to kill this job or otherwise reset the backup system?
2. Can I delete that other (prefix "test") job from "Current Backup Tasks" tab?
Thank you.