Blank screen when not logged in to wordpress

Hi there, I am having a problem with a site I am creating using the pagelines DMS2 theme, the problem relates to the Directory plug in. If I am logged in to wordpress, I can see the directory listings I’ve created fine. If I am not logged in to wordpress the page is completely blank, nothing displays on screen. Problem can be seen at http://www.fit-net.org.uk and then click on the Directory menu item in the top right of the screen. I really want the directory to be visible even when the user is not logged in to wordpress.

Any help you can give would be great, as I’m a bit stumped. Thanks