Facebook comment box not showing

Hi,

Im building my very first custom theme on WP, so i’m new to this…

I just installed and configured the official Facebook plugin, did all the secret key thing, disabled sandbox mode.

I don’t see comments showing on my posts, I tried adding this line of code:
<div class="fb-comments" data-href="https://rahulkhosla.co.uk" data-width="700"></div>

But they then appered the same on each post (and even in the summarys).

All I want is to have Facebook comments displayed on the FULL post page (not the summary).

My index.php file:

<?php
get_header();
?>
<div id="main">
  <div id="content">
  	<h2><?php wp_title($display); ?></h2>
    <div id="blogHold">
    <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
    <h3><?php the_title(); ?></h3>
    <h4>Posted on <?php the_time('F jS, Y') ?></h4>
    <?php the_content('Read More'); ?>
    <hr>
    <?php endwhile; else: ?>
    <p><?php _e('Sorry, no posts matched your search criteria.'); ?></p>
    <?php endif; ?>
    </div>
  </div>

  <?php get_sidebar(); ?>

  </div>

<?php get_footer(); ?>

Please help!

Thanks!

My site: https://rahulkhosla.co.uk

https://www.ads-software.com/plugins/facebook/