I'm not able to get the Instagram business app to connect. I have a valid Instagram business account that is connected to my facebook page.

Whenever I try to connect to the Instagram business app in the app store a window for facebook opens up with an error message that says: "App Not Setup: This app is still in development mode, and you don't have access to it. Switch to a registered test user or ask an app admin for permissions."

I am the admin and do have all the permissions so not sure why I'm getting this message.