In order to prevent inappropriate use of the program, Master Feedback must be accessed from a form on a web page located on an authorized domain.
Master Feedback checks for authorized use by consulting the URL of the form being used. Your browser sent along no URL information, so Master Feedback can not process the form.
If you are on a web site and using a form, then you might have specified your browser's security, tracking, or personal settings in a way that prevents it from disclosing the URL. Master Feedback must know the URL of the form before processing can commence.