Try turning off SEF. Also make sure that the template, Gantry and RokNavMenu is updated to the latest versions.
SEF is turned off and did not help either. When you want I can give you both the admin and password so that you can access it via my indoor ip-address. But then I need your e-mail since I cannot post it into the forum... :cheesy:
I just turned on: full error reporting and get the following error:
Fatal error: Class 'SimpleXMLElement' not found in /mnt/disk/volume1/myweb/social/components/com_gantry/core/utilities/gantrysimplexmlelement.class.php on line 5