Based on what i checked on your site, it seems like that logout option is there, but too many option there so unable to populate all the option in the screen, you can check it when you zoom out.

For now, you can temporary remove some of the option from this core file first.JoomlaFolder/components/com_easysocial/themes/wireframe/toolbar/default.php

By the way, i will lock this issue into our issue tracker.

Ah yes... I see the issue. Thanks for the temporary work-around which I'll use and thank you for adding it to your issue tracker for future permanent solution.

You're most welcome.