Once you copy your marker go back to travelpayouts module settings page and make sure to change only domain name in the white label input field such as shown in below image.
Example :
Default : //hotels.phptravels.net/hotels?marker=99072&
Yours : //hotels.yoursite.com/hotels?marker=your-marker-ID&
once you changed click on submit and make sure the module is marked enable to test on frontend of your website.