Problems with Facebook login application button

I went to the Facebook application developers page and created a Facebook login application for my forum. Then I added API key and API secret code and copied them to my forum's administration panel, then saved the changes. Right after that the Facebook login button appeared on my forum's login page and was clickable (the arrow changed to a hand), as you can see on the picture. But for some reason, when I click on that button, nothing happens. According to the info found on the Facebook app developing page, that is all there is to it, but it's not working for me. Does anyone know what I did wrong, or what I should do? Does it require additional page code editing or something else? I'm new to this, so any help as detailed as possible would be appreciated. Thank you in advance.

PS. The page is done in php BB 3 code, forum web adress is http://nadaljforum.serbianforum.info/

očigledno su te iskulirali

Aha

Read this:

https://help.forumotion.com/t102733-facebook-login-help

Hi,

You may have the popup blocker active - make an exception for '*.facebook.com'
Browser options > Popup blocker

It poped up normally for me, but said there was an API Error - can you reput your details in just to ensure they are written into the code accurately.

Nevermind guys, I moved my forum someplace else, so it is not important anymore. Thx anyways. Sorry for the late response.Cheers.