Drupal for Facebook

Hoping this is the right place for a question about error messages, i salute you!
I have the application Facebook for Drupal running after a few weeks diving deep into this complex matter, being totally unexperienced in application building.

I keep on getting this message under the Planet ArtVLOG EXPRESS application on Facebook http://apps.new.facebook.com/artvlogplanet/

URLExceptionInvalid scheme for url (javascript:void(0);)

What to do about it, haven't got a clue.. Think i have everything at the right place on my webserver, is it on the Drupal site or the Facebook side something goes wrong... Can anybody explain me what this is and help me solve this problem?

Thanx a lot.

Marcus van Soest
Painter and Web Artist