Direct Facebook Live streaming from mobile third-party apps is no longer reliably supported by Meta. The recommended approach is to use an intermediary restreaming service:

1. Create a free account at restream.io or castr.io.
2. Connect your Facebook account in their dashboard.
3. Get the RTMP URL and Stream Key from Restream or Castr.
4. In ScoreCam: Settings → Live Streaming → Add Account → select Other Service → enter the RTMP URL and stream key.
5. Restream or Castr automatically forwards your ScoreCam stream to Facebook Live.

For more details, see the full Live Streaming guide.