Is facebook authentication for the Android app not working for others?
When trying to log in on the Android app, I'm getting this message: m.facebook.com Error Feature Unavailable: Facebook Login is currently unavailable for this app. That is after following these steps: 1. Open the sololearn app. 2. Click "f" button. This button is under the text "Continue with" and to the right of Google's "G" button. 3. Then the above error message appears. I had no problem signing in until today.