Title & Sidebar disappeared on main blog page

The title and side-bar has disappeared from the main Blog page of ( https://www.ebizanswers.net/blog ) but they re-appear when you view an individual post ( https://www.ebizanswers.net/2014/11/are-you-ready-for-the-2015-malaysian-gst ).

I have looked at loads of online suggestions as to what could be causing this but cannot find the correct solution. Has anyone experienced this before and know the answer????