How to set up comments with moderation from facebook?

Question

Facebook

I did everything according to the instructions:
1. Created an FB application with comments, included.
2. Added a meta tag to head

<meta property="fb:app_id" content="*****0281413718" />

3. Added code and script to the page

<div id="fb-root"></div>
<script>(function(d, s, id) {
  var js, fjs = d.getElementsByTagName(s)[0];
  if (d.getElementById(id)) return;
  js = d.createElement(s); js.id = id;
  js.src = 'https://connect.facebook.net/ru_RU/sdk.js#xfbml=1&version=v3.0&appId=4*****50281413718&autoLogAppEvents=1';
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

and nothing works, it's empty here https://developers.facebook.com/tools/comments/ although there is a comment from another user and there is no moderation on the page in the plugin, who really set them up with moderation and does it work at all or not?