I am getting the error 3007 although the secret and application key are correct. i am also giving old key as well but still got the same problem. anyone hint me what to do. it was working fine with sub domain, but later i deploy to main site so i remove that project and create a new one with main domain but this time got error 3007 from the last 5 days.
[UPDATE]
My problem is solved. Actually the problem is that there is a typo error in return url. it was wwww instead of www in return url.