Shortcode result position

Hi,
here in left top corner is result of shortcode
http://www.actimaris.cz/recenze-produktu/

but it should be under page title Recenze produktů

Could you please help what I am doing wrong?
this is shortcode php

$args = array (‘post_type’ => ‘product’);
$comments = get_comments( $args );
wp_list_comments( array( ‘callback’ => ‘woocommerce_comments’ ), $comments);

https://wordpress.org/plugins/my-shortcodes/