[BirdOPrey5]

It adds a scheduled task to vBulletin's list of scheduled tasks that can be seen in the Admin CP under Scheduled Task Manager.

Like all scheduled tasks they are only triggered if there is regular traffic to the forum because they are initiated on a page load where the cronimage is triggered which is in the footer template.

If no one visits the site at night the task never gets triggered.

There is a window of course, if someone comes soon after it should trigger, but at some point it just won't trigger.

Try setting it to run during a busier time of the day on your forum perhaps.