That's not a valid link - giving me a '404' error. In any case, as I said above, you should submit a ticket to Appnitro through their support system; this forum is not for official technical support and is only for user to user discussion and help - where we are able to do so; this seems to be more technical and Appnitro would be the best people to assist.
I've never heard of the error "link retired" but it could be a server error, not related to Machform - unless you mean "link EXPIRED" (not retired)?