Facebook Login not working on android

Hello everyone,
Our application currently in BETA version on Google play store is experiencing connection problems via Facebook.

Indeed some of our testers can connect.
Others don’t.

Have you ever encountered this problem?

I would look to make sure that all the settings and configuration for facebook auth are enabled correctly. Or offer alternatives to facebook authentication.

Thank you for your answer.
We are going to review the plugin installation protocol.
But we think the problem may be with the hash key release.
Do you think this key is only valid with the production version? and does not work in BETA version?