Format: Photo Grid problem

Hi,

I have a problem with Photo Grid, when I view my page the pictures still appear underneath each other.

http://www.factum.one/horseventures/themes/drupal/Capture37.PNG
http://www.factum.one/horseventures/themes/drupal/Capture38.PNG

Kind regards,
Wout

Drupal version: 


Source: https://www.drupal.org/taxonomy/term/22/feed