Category Blog Pages Not Showing

I have noticed that category blog pages don't show. All I get is the page title. I don't know if this is a setting in Mobile Joomla or related to the main Joomla site or template.

I expect someone has a solution.
My site is www.splitz.org.
Joomla version 3.4.3. Mobile Joomla version Community 1.2.10.

UPDATE

This has been resolved.
The issue was related to being unable to edit the Helix template. A further search using Helix 2.1.9 and Joomla 3.4.3 found this site: ltheme.com/joomla-3-4-2-joomla-3-4-3-and-helix-ii-framework-template-manager-has-stopped-working-problem/.
There is a simple fix to this problem - download the plugin. Helix was put back to v2.1.8 and I was able to edit the template again.
All sorted.