Hi Alex,
the page is not yet live, I am going to move my live-page there, so don´t be distracted if it does not look "ready".
You find the request-link on the bottom right with the text "TextLink", the module has the name "Request". I think you will find it as there is not much content on the page.
The URL is
www.multimind.de
However, in the meanwhile one of the requests has arrived but leads into a next error. When the invited user clicks on the notification facebook throws out the error "Sorry, this application is currently experiencing a problem. Please try again later.".
The other user didn´t recieve the invitation yet.
All the best, Julian!