Is there an automated way to delete all my page’s comments with Graph API (or other dev tool) without using an IDE?

based on the <Page Public Content Access> feature and this doc https://developers.facebook.com/docs/features-reference/page-public-content-access/

I received FB email saying

I am fetching “page_fans” from Facebook Graph API Insights. (..v19.0/pageid/insights/..)

Based on this document, I can create stories on my page, but I don’t see any mention of how to set up CTA buttons like Learn more, See more,… to lead users to the website.

I am using below facebook api to exchange access token for long lived token

I am trying to properly set up my Facebook login link, however, I have no idea what the login URL is actually supposed to be. The furthest I have gotten is that my app ID is formatted correctly, and that my response type is correct. Everything else I am unfamiliar with.
What my URL currently looks like: “https://www.facebook.com/v19.0/dialog/oauth?client_id=[my ID]&redirect_uri=”[redirect URI that I added as valid in my app settings]”&state=”{st=[st],ds=[ds]}”&response_type=token”

I need to upload facebook reels with api but show this error