This worked for me. I had a Zoom plugin that kept posting items to a recycle bin in one of my courses. Essentially I think it was creating so many instances of itself and deleting them that it clogged up my cron. After deleting the Zoom plugin, which I didn't need anyway, everything started working and after a few minutes the Activity Deletion notices went away. Hope this helps.
Re: Deleted gradebook item still visible with error after deletion
i le David Nawrocki -
Number of replies: 1
In reply to David Nawrocki
Re: Deleted gradebook item still visible with error after deletion
i le Betsy Springer -
How did you determine which plugin was the problem?