Error: The app you are using is not responding. Please try again later
I am using the [tutorial][1] given here, first tried localhost as a callBack Url and then tried real IP, both time I got the error given in Question title. How can I resolve it? I am using PHP

Thanks

I am in Sandbox Mode


  [1]: https://developers.facebook.com/docs/credits/build/
Error: The app you are using is not responding. Please try again later
===

I am using the [tutorial][1] given here, first tried localhost as a callBack Url and then tried real IP, both time I got the error given in Question title. How can I resolve it? I am using PHP

Thanks

I am in Sandbox Mode


  [1]: https://developers.facebook.com/docs/credits/build/