You could ask (or search) for you Router's password in order to open TCP/UDP ports.
Otherwise call your Internet provider and ask to do that for you.
On the other hand, since you're talking about Supercade, for future problems with it, would be better to ask to damdai.com instead, although, port forwarding is a problem in common.
I'm telling you this because Supercade isn't open source (at least that's what it seems), then it goes against FB Alpha politics.
So this wouldn't be the correct place to report Supercade problems.