We are having problems trying to set up our autoposting for Facebook. We are getting an error on step 2. #1 in EasyBlog admin.

This is the error we get in the popup window, when the the "Sign in to Facebook" button is clicked

"Given URL is not allowed by the Application configuration.: One or more of the given URLs is not allowed by the App's settings. It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App's domains."

What are we doing wrong?? I have attached a screenshot for reference.

Thanks