FB Login Error

Hi Friends,
I am using WP Social Login plugin to help me add a Social Media Login on my website.
I activated Google and FB Login. I already set up for Google Login and it works without any problem.

I set up for FB login, and I got this error
“URL Blocked: This redirect failed because the redirect URI is not whitelisted in the app’s Client OAuth Settings. Make sure Client and Web OAuth Login are on and add all your app domains as Valid OAuth Redirect URIs.”

If you want to have a look on my website just visit : https://demo.indobuy.com. Klik On REGISTRASI on the top right of the screen.

I really appreciate any helps from you. Thank you very much.

The page I need help with: [log in to see the link]