I have a web app that posts content to users facebook's written in PHP with CodeIgniter using Facebook SDK v4.
The app works normally when the user logged in is the account where the APP is registered, but when trying to log in with a regular user I get the message:
Application not configured: This App developers didn't configured the app correctly to log in with Facebook
What am I missing? Why is it only working with the user who created the APP?
Thanks