As I said all pages had this error. Main page, Forum, Reviews, all of them.
I rebooted the server and this is how it got fixed.
Also I am not sure if I got exploited or something because I shared my passwords here in my profile. Because If anyone would find my email and password combination here, he would fine my site's passwords as well. And I had a usual Google Chrome warning error that there was a security breach in my account here in Jomsocial.com.