I am trying to integrate the Facebook plugin for signup as well as for login to the website. The steps has been followed correctly to integrate the Facebook plugin, but whenever the Facebook button is clicked on the signup or registration form, it gives an message " An error occurred. Please try again later." The Amember is installed in the test sub-domain, testing.mydomain.org and and the Amember is installed in the subfolder amember , so the signup form's url is : http://testing.mydomain.org/amember/member/index. I have entered the following details while creating the FB application: Display Name: Site Title App domain: he url of the subdomain i.e testing.mydomain.org category : others Select how your app integrates with Facebook Website: site URL: http://testing.mydomain.org/amember/member/ Can you suggest which step I have missed? Thanks