You have ad crawler errors - Google AdSense

[Tanfies2]

Sorry if this has been posted in the wrong place, however, not quite sure where to go with this??

Got an alert from Google AdSense saying that I have ad crawler errors, which can result in lost revenue.

It's showing that 15 pages are affected, all of which are topics within the Forum.

Oddly, it also says Must Fix? 'No', Crawler 'unknown error', Ad serving status 'Restricted Demand' 

I'm still seeing / displaying Google Ads within my Forum, I'm still receiving revenues, although have seen a recent drop.

Any ideas of what it going on, what need to be done to resolve??

Thanks in advance..

[drewactual]

Use your Google search console, then coverage,, and look at pages with errors, and what those errors are.  Sometimes they're an easy fix and sometimes they're not... sometimes the fault is google's, believe it or not.