You haven’t set up your form correctly on the contact us page and applied your email address.
In the editor navigate to that page. Click to edit the form. In the form properties window click the “actions” tab. This is where you input the email address you want to have forms delivered to. Once completed, publish the page again.
All of the information you need about using forms can be found in our help files: http://support.premium-webhelp.com/forms.html