To access your Control Panel, you should replace this link with your domain
As an example, if your domain is responsive-muse.com, your backend would be https://responsive-muse.com/assets/ratings.php
A username and a password is required. Open ratings.php with Sublime or Notepad++ and edit the file with your own values.
Write your own username and password and save the file. Remember to attach it to widget settings. Once attached and the site is uploaded, then you can access your Control Panel with the link above, your new username and password.