If you're having troubles to access Cameyo on Linux it might be that another webserver (Apache, nginX, ...) already uses port 80/443 and therefore Cameyo won't start.
To check this, open a terminal on the Cameyo server and enter the following command:
sudo netstat -tulpn | grep --color :80
sudo netstat -tulpn | grep --color :443
This then will show you whether CameyoPlay is running on that port or something else: