Panchev

Yes, I have W3 Total Cache installed on the site.
I followed the instructions here: https://nrelate.com/theblog/plugin-compatibility/w3-total-cache/ and added https://qwikgist.com/wp-content/plugins/nrelate-related-content/admin/nrelate_js.min.js to ‘Never minify the following JS files:’ field.

But it still does not show anything.

I had the same issue and this is how i fixed it:

add_action('wp_logout','destroy_facebook_session');
function destroy_facebook_session(){
	global $facebook;
	$user_id = $facebook->getUser();
	// if the user is from Facebook
	if ( $user_id ) {
	   $facebook->destroySession();
	}
}