Hey guys,
Don't know that I've ever seen this before. The "Download information as a vCard" link goes to a blank page...
I did not find anything on joomla.org. Is not specific to template.
I appreciate any help in advance.
I had the same problem. I had disabled vcard in the global parameters, but it still allowed the setting to show vcard in the individual contacts. Once I re-enabled it in the global parameters it worked.
From within the Administrator, go to Components > Contacts. One of the icons in the top right hand corner is Parameters, click that to get into Global Configuration and then enable Vcard.