Ads stopped appearing on websites

Some, not all, of the advertisements vanished from our website over the holiday break. There is supposed to be ads above and below the ad for the hospital that currently appears. I’ve tried reloading the tags generated by double click, that hasn’t worked. And honestly, I’m a writer and I don’t really know how to do coding. Hoping there’s an easy fix.

Also, all our ad codes are generated by doubleclick…the ones that work and the ones that don’t.

https://www.ads-software.com/plugins/ad-inserter/