Invite friends through facebook and posting in thier wall and return to site url?

[d_robers]

I have created a app for my web site in facebook while inviting friends for the app it returns a call back url **\[quote\] referrals/fb_invite?channel=6&ids[]=100000576230613\[/quote\]** and goes to 4o4 page error What does this url mean from facebook and how can redirect it to my site url?.