Facebook API Authorization Issue

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flutter_facebook_auth

SOLVED] Error : App not set up: This app is still in development mode, and you don't have access to it.

App not Active. Whenever I try to log into any game with Facebook, this shows up. I've tried multiple methods but I don't seem to understand the problem properly, I've had this

Connecting Facebook account to Alexa

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Facebook login/authorization not successful - Troubleshooting - odrive Forum

New device - unable to login via Facebook. Any workarounds? : r/CounterSide

BGMI FB Login Problem: Fix BGMI Facebook Login Problem in Seconds!