Yes thank you for your reply. I did find that earlier today and implemented it as instructed...But!...its not working perfectly and here's what I mean.
If I'm already logged into my facebook account via the facebook site itself, (not through my shopping site), then I'm able to log in with no problem automatically on my shopping site using the login with facebook button. No filling in of facebook username and password is necessary.
But if I'm NOT logged into my facebook account at all, and I login using the same login with facebook button,then what happens is that a popup comes up with empty fields to fill out using my facebook username and password, then an error message occurs when I hit ok, saying that my facebook account or app was not configured correctly. And when I re-try to do it again, the fields to fill-in the username and passwords don't even show up anymore,. It just takes you straight to the same error message again. And the only way to reset it, is to enter back into my facebook account on their site and log myself out of facebook again, because apparently, my site somehow logged me in remotely without needing to go to facebook's site directly. LOL! I hope I'm being very clear and not confusing anyone. LOL!
Thanks for any help.
Mario