Xenforo Facebook integration redirect_uri error

[CYBORG]

Created Facebook App made it public.

Basic Settings screenshot

Advanced Settings screenshot

While testing on Xenforo I see following message:

Error validating verification code. Please make sure your redirect_uri is identical to the one you used in the OAuth dialog request.

I followed instuction provided by Xenforo

How to solve it?

 

[Whis]

Is your redirect URI really just site.com? Go check the value of the redirect_uri parameter in the login dialog call. You have to specify the URL used there as a Valid OAuth Redirect URI