サイドパネルが表示されない問題

<?php if( ! dynamic_sidebar(‘main-sidebar’)):?>
<li class=”widget”> <!– widget starts here –>
<h3 class=”widget-title”><span><?php _e( ‘カテゴリー’, ‘buddy-docs’  ); ?></h3>
<ul>
<?php $args = array(
‘show_option_all’    => ”,
‘orderby’            => ‘name’,
‘order’              => ‘ASC’,
‘style’              => ‘list’,
‘show_count’         => 1,
‘hide_empty’         => 0,
‘use_desc_for_title’ => 1,
‘child_of’           => 0,
‘feed’               => ”,
‘feed_type’          => ”,
‘feed_image’         => ”,
‘exclude’            => ”,
‘exclude_tree’       => ”,
‘include’            => ”,
‘hierarchical’       => 1,
‘title_li’           => ”,
‘show_option_none’   => __( ” ),
‘number’             => null,
‘echo’               => 1,
‘depth’              => 0,
‘current_category’   => 0,
‘pad_counts’         => 0,
‘taxonomy’           => ‘category’,
‘walker’             => null
);
wp_list_categories( $args );
?>
</ul>
</li>  <!– widget ends here –><li class=”widget”> <!– widget starts here –>
<h3 class=”widget-title”><?php _e( ‘最近の投稿’, ‘buddy-docs’  ); ?></h3>
<ul>
<?php wp_get_archives(‘type=postbypost&limit=5’); ?>
</ul>
</li>  <!– widget ends here –>
<li class=”widget”> <!– widget starts here –>
<h3 class=”widget-title”><?php _e( ‘最近のコメント’, ‘buddy-docs’  ); ?></h3>
<ul>
<?php
$comments = get_comments(array(‘status’ => ‘approve’ ,’number’ => 5));
foreach($comments as $comment):
$post = get_post($comment->comment_post_ID);
?>
<li><a href=”<?php the_permalink(); ?>”><?php the_title(); ?></a><br />
<?php comment_author_link(); ?>より</li>
<!–php comment_date(‘m/d’); comment_text(); –>
<?php endforeach; ?>
</ul>
</li>  <!– widget ends here –>
<li class=”widget”> <!– widget starts here –>
<h3 class=”widget-title”><?php _e( ‘Archives’, ‘buddy-docs’  ); ?></h3>
<ul>
<?php wp_get_archives( array( ‘type’ => ‘monthly’ ) ); ?>
</ul>
</li>  <!– widget ends here –>
<?php endif; ?>