Backup for specific item id is created each time cron is executed

Hi,

I've seen lately that my server performance has been bad. I found that there is a table in Moodle which that is being populated each time the moodle cron job is executed:

mdl_backup_controllers

And so is the temp/backup folder of moodle data. I have multiple questions, first one is where can I look for this activity with id 3627? is there a table I can check for it? second, what does the statuscode 800 means? and third, how can I fix this problem? it seems like the backup will keep going and I don't know why?

Thanks for any help you can provide.