Shortcode not appearing on website

I’ve been having issues implementing the shortcode into my website.

So far, I’ve tried the following:

• I’ve tried using the shortcode, [trustindex no-registration=facebook], as-is.
• I’ve tried inserting it as PHP – <?php echo do_shortcode('[trustindex no-registration=facebook]'); ?>
• Thinking shortcodes haven’t been enabled in the theme, I’ve put the following code in functions.php:

  function the_content_filter( $content) {
      return do_shortcode( $content);
  }
  
  add_filter( 'the_content', 'the_content_filter', 1000);

The requested information can be viewed at https://controlc.com/042e1aaf (Pastebin thinks there’s swearing in it)

Any suggestions would be appreciated. ??

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