Login as an admin Go to the site administration Search for "enableasyncbackup" Confirm that "enableasyncbackup" is enabled Ensure that cron service is not running on your machine Create a course Add a new "Text and media area" from the Resources Add another "Text and media area" from the Resources Delete the first "Text and media area" Go to "More", "Course reuse" and click "Backup" Click "Jump to final step" Run the cron: "php admin/cli/cron.php" Verify that the task logs (Site administration > Server > Tasks > Task logs) show the course_modules_deletion task without errors followed by the asynchronous_backup_task Verify that the task log output does not have an error including "array_key_exists"