Facebook API connect does not work

Hi, I’ve been using Flow Flow for a few years now on my company website but recently the Facebook token will not work no matter what I try, and by extension neither will instagram.

I have followed the guidelines on your website:
https://docs.social-streams.com/article/46-authenticate-with-facebook

When I connect the app, it claims to be successful and redirects me back to my website, and shows me the access token/extended token inside the boxes.

However, when I go to enable my feed it says:
“An access token is required to request this resource”

But there is a token sitting in the Auth tab settings..

I’ve tried removing the app from my business manager and restarting, but the same issue occurs (with what seems to be the same token string every time… clicking ‘refresh token’ does not change anything). I have also tried doing it from an incognito window but that didn’t work either.

Any help would be greatly appreciated, thank you!

The page I need help with: [log in to see the link]