Cannot port forward dashboard

[haxoder]

So i have both bot and dashboard on my windows server. Both are open in cmds and i can acces to bot's page with domain.com
and its all normal. But if i try to get to dashboard i cannot get to panel.domain.com and its says page doesnt exist but i have all port forwarded and setted up in xampp. I can acces to both of it on localhost on the server. Can you explain how can i put dashboard to a domain because i dont understand it or i am just dumb. Thanks again for making this awesome bot <3