Facebook Login Error Message

[JohnCourt]

Thanks in advance folks, I am still getting an error message after jumping through the hoops. We moved to SSL login for Facebook, and I followed the instructions verbatim at https://invisioncommunity.com/4guides/how-to-use-ips-community-suite/social-sign-in/43-and-above/facebook-r300/

But I am still getting this error when I try to login to our community:

Does anyone have any suggestions how to get FB login to work, or some trouble shooting methods?

Thanks a ton

John