WP plugin isssue - Given URL is not allowed by the Application configuration: One or more of the given URLs is not allowed by the App's settings

I have a Premium SEO Pack – Wordpress Plugin installed and with its Facebook planner, we are supposed to authorize app after providing the initial settings.

I have provided all the settings correctly. Provide app id, app secret, app domain, site url (through add platform), settings->advanced->enabled browser oAuth login, provided Valid OAuth redirect URI http://ift.tt/1XwL5bm .

But still I get the "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." error.

Also its not on localhost, but production server.

I know this is a duplicate thread but none of the solutions mentioned there helped me.

I would appreciate your help. Thank you!

via Chebli Mohamed