Facebook API get URL engagements without limit


I’m trying to setup a facebook api call to get url engagements on my website, but I’m always reaching a limit on calls. I’ve read that we need a “Page Access Token” to have unlimited acces but the token I’ve generated and given to my calls still give me limited access. I’ve checked on the facebook access token debugger tool (https://developers.facebook.com/tools/debug/accesstoken/ ) to verify that it’s a page access token but i’m not sure because there is an expiration date on it.

So, I’m not sure to know how to generate this specific kind of token