Open graph submission rejected because they couldn't log in to fb

Please have a look at my website login which I've said in a previous post that it is not showing properly. I can't find a stable combination to fix the JavaScript button. Though I was able to use it but when I submitted an action for review I got a reply from Facebook that they couldn't log in to test the action.

www.saudiclubmunich.com

Thanks for your reply.

I did submit the steps with screenshots. I actually used the test user provided by them. I mentioned the username and password for the test user so they can use it. They only needed to log in with those details.

This is their reply:


Changes Needed
Please address the following feedback from our review team. Once you have made the changes listed below you may resubmit for review.

Thanks for your submission. I reviewed your action type, but it didn’t meet our criteria to become available to users. Here’s a list of changes that need to be made:


We haven’t been able to successfully log in to your app with the Login with Facebook button while using the Open Graph Test User provided due to this error:

Please make sure that you can successfully log in to Facebook with the Facebook connect button and resubmit.

See more about authentication: developers.facebook.com/docs/facebook-login/login-flow-for-web/.


Once you’ve made the changes, I’ll review your submission within 3 business days.

Thanks for developing with Facebook,
Carol

Okay. I've noticed that the button is broken mainly on the home page but on the other pages it is okay.
I've looked if I had any other plugins which might cause a problem and found a "JJ social slider" and disabled it. Cleared cache and it is okay now. The button is okay now but I also have a SClogin presented as a model inside a drop down menu at the first top link on the right. In this model the joomla login fields are showing but the Facebook button won't show so I switched it to an icon with text.

I'll resubmit and hopefully it will get accepted this time