MistyLook Theme doesn’t validate

How do I locate the validation error seen here:

https://validator.w3.org/check?uri=http%3A%2F%2Fwww.everypersonisastory.com%2F

I cannot see the error in the sidebar


<div id="sidebar">

<?php if ( function_exists('dynamic_sidebar') && dynamic_sidebar() ) : else : ?>
<?php if(is_home()) { mistylook_ShowAbout(); } ?>

<li class="sidebox">
<h2><?php _e('Archives'); ?></h2>

<?php wp_get_archives('type=monthly&show_post_count=true'); ?>

<li class="sidebox">
<h2><?php _e('Categories'); ?></h2>

<?php wp_list_cats('optioncount=1');    ?>

<li class="sidebox">
<h2><?php _e('Pages'); ?></h2>

<?php wp_list_pages('title_li=' ); ?>

<?php if(is_home()) { mistylook_ShowLinks(); ?>
<li class="sidebox">
<h2><?php _e('Meta'); ?></h2>

<?php wp_register(); ?>
• <?php wp_loginout(); ?>
• Valid XHTML

<?php wp_meta(); ?>

<?php }?>
  <?php endif; ?>

</div><!-- end id:sidebar -->

Thanks