In the version 3.99 of AdAdmin has been added support for fallback filler.
The fallback filler is a banner already present in the Banners that is used to fill the position when there are no more ads to show, so you will never have empty slots.
The banner choosed is shown also if it is “Ended” or “Paused” and views and clicks are normally counted for that banner when it is shown as a filler ad.
You can find the option in the Position edit page.
