I have followed exactly what the youtube videos have instructed me to, although I cannot get a port open for my game. It continuously states that "Failure while posting to games page: {"error":"You are not the owner"}".

Is there any way to fix this issue? I've been trying for quite a while now, although I cannot think of a solution. Thank you very much if you do decide to help me.

STOP HACKING

I recommend you log out and log back in
That should fix it!