If you navigate to http://ynfa.net/groups/ynfa-the-hub/ in chrome on a pc and try to share a post to Facebook (using the plugin installed) the window will not pop up to allow the share. It works fine on all other browsers (Mac also). Sharing via email / twitter and G+ also works fine using Chrome on a PC. Its just when trying to share to Facebook option.
Could you take a look and test out why this is happening? A clash maybe? I can allow backend access if you need me to.