Shortcode not working

The shortcode [yuzo_related] does not work. In the page source the Yuzo code is shown but not working. The theme uses Visual Composer to create the pages.

When using a page with a sidebar widget, the Yuzo element works just fine.

What is wrong here? I want to display the yuzo box on a page….

The testpage with the shortcode is here: http://www.nlsupervrouwen.nl/test/