Can't login with facebook or register

I have set up my app and updated the keys and secret in my wordpress site. However, it doesn’t want to work for me. can you please take a look, my website is If you need any other info please let me know.

Do i need to enter anything in facebooks “app domains”? I had them in there and then took them out, either way I can’t seem to get this to work. All I really need is the login / register part of this plugin. thank you for your help.