If you need instant help you can try the fritzbox IRC channel. Some of the developers are known to sometimes hang out on there: ##fritzbox on Freenode.
Server="chat.freenode.net" Port="6667" Channel="##fritzbox"
If you have any trouble while connecting (Unauthorized connection), please use an alternative server. Maybe you need one from your country. You could find an overview about the Freenod-servers here: