Hello,
I am really sorry for the delay of this reply as it is a weekend for us here. I have checked the site and it looks like the smart search content plugin isn't enabled,
http://take.ms/ECUbP . After enabling this, I hit the "Index" button,
http://take.ms/mn826 and the search works fine now
EasySocial relies on the Smart Search in Joomla to search for contents, giving you a more unified searching experience.