@miled thanks for a great plugin, but you do not appear to be actively developing nor supporting this plugin any longer. Several outstanding issues and patches remain to be addressed, some of which appear to be quite critical.
For those who chose this plugin because of its freedom, I would recommend SocialAuth WP. I am in no way affiliated with this plugin, I merely found it via the HybridAuth Download page. It appears to be very well maintained and professionally supported.
I’m trying to work on this project and provide as much support as i can (mostly via email) during the little spare time I have, but it happen that I work on Hybridauth Library and serval others open source projects beside a full time job which make this plugin a low priority unfortunately.
After checking, myself I would recommed using SocialAuth WP as well.