I use DiscourseHosting and their Adsense plugin — I do not know whether this factoid matters but I share it regardless.
Anyhoo, I have added my necessary publisher ID and slot unit ID’s and such in plugin settings, and also added my site and subdomain on Adsense under their Sites settings. However, I have received this error, see attached:
Did I need to add my site to Adsense? If so, do I need to copy and paste their snippet anywhere? Please help clarify this. Thank you.