Mandatory information about my setup:

Have I searched the tickets before posting? Yes
Have I searched the forum before posting? Yes
Have I read the documentation before posting (which pages?)? No
Joomla! version: 3.3.6
PHP version: 5.4.24
MySQL version:
Matukio version: 5.1.3
Direct link to the page that shows the issue: Private


Description of my issue:
When a user clicks on the "Contact" of the Organiser, nothing happens!

Display dulls, but nothing else happens - No pop-up - only break is to press "ESC" or backup