Sitemap – Posts' Topics problem

Hi, I’m using Disqus comment system on my website http://mobirank.pl and when plugin is enable I’ve got problem with displaying topics of my post on sitemap site: http://mobirank.pl/mapa-strony/
In Disqus plugin setting there is Output JavaScript in footer option enable too. Have you got any idea how can I fix it? Thx in advance!
there is code on my sitemap page:

<h3 class="divider-title">
<span><?php _e( 'ARTYKUŁY', 'leaf'  ); ?></span>
</h3><!-- .divider-title -->

<div class="sitemap-body">
<ul><?php $archive_query = new WP_Query('showposts=1000&cat=-500');
							while ($archive_query->have_posts()) : $archive_query->the_post(); ?>
<li>
<a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?> (<?php comments_number('0', '1', '%'); ?>)</a>
</li>
<?php endwhile; ?>
</ul>
</div><!-- .sitemap-body -->