Did you see an advert for it? (Just wondering why you're at the ads library for it - it doesn't appear to have any ads.)
As for reporting it, the "Report a problem" button at the bottom of that page will lead to this, but here is is:
* Go to the page - you can click it on the page's name in the advert, or you can search for it, or you can cheat and go to /2261037334224684 (that identifier from the URL you posted), which will take you to the page.
* Next to "Like", "Follow", "Share", there's an ellipsis thing, and under there, there's "Find support or report page", where you can selects "Scams and fake pages".
