wordpress mandigo theme , i got a problem

hi all , hope someone can hep me out

underneath the header of my blog - www.itechblog.info
there is this mesage - Warning: Invalid argument supplied for foreach() in /home/itech/public_html/wp-content/themes/mandigo/index.php on line 13

what the hell is that about

help please , regards karl

 

index.php , here we go

<?php
global $dirs;

get_header();
if (!get_option('mandigo_nosidebars') && get_option('mandigo_sidebar1_left')) include (TEMPLATEPATH . '/sidebar.php');
if (!get_option('mandigo_nosidebars') && get_option('mandigo_1024') && get_option('mandigo_3columns') && get_option('mandigo_sidebar2_left')) {
include (TEMPLATEPATH . '/sidebar2.php');
}
$tag_posttitle_multi = get_option('mandigo_tag_posttitle_multi');
$tag_pagetitle = get_option('mandigo_tag_pagetitle' );

global $wp_registered_sidebars;
foreach ($wp_registered_sidebars as $key => $value) {
if ($value['name'] == 'Mandigo Top') { $index_mandigo_top = $key; }
if ($value['name'] == 'Mandigo Bottom') { $index_mandigo_bottom = $key; }
}
if (function_exists(wp_get_sidebars_widgets)) $sidebars_widgets = wp_get_sidebars_widgets();

?>
<td id="content" class="narrowcolumn">
<?php if (function_exists('dynamic_sidebar') && $sidebars_widgets[$index_mandigo_top]): ?>
<ul class="inline-widgets">
<?php dynamic_sidebar('Mandigo Top'); ?>
</ul>
<?php endif; ?>

<?php if (have_posts()) : ?>

<?php while (have_posts()) : the_post(); ?>

<div class="post" id="post-<?php the_ID(); ?>">
<div class="postinfo">
<div class="calborder">
<div class="cal">
<span class="cald<?php echo (get_option('mandigo_dates') ? ' cald2' : '') ?>"><?php the_time((get_option('mandigo_dates') ? 'M' : 'd')) ?></span>
<span class="calm"><?php the_time((get_option('mandigo_dates') ? 'd' : 'm')) ?></span>
<span class="caly"><?php the_time('Y') ?></span>
</div>
</div>
<?php if (!get_option('mandigo_no_animations')): ?>
<span class="switch-post">
<a href="javascript:toggleSidebars();" class="switch-sidebars"><img src="<?php echo $dirs['www']['icons']; ?>bullet_sidebars_hide.png" alt="" class="png" /></a><a href="javascript:togglePost(<?php the_ID(); ?>);" id="switch-post-<?php the_ID(); ?>"><img src="<?php echo $dirs['www']['icons']; ?>bullet_toggle_minus.png" alt="" class="png" /></a>
</span>
<?php endif; ?>
<<?php echo $tag_posttitle_multi; ?> class="posttitle"><a href="<?php the_permalink() ?>" rel="bookmark" title="<?php printf(__('Permanent Link to %s','mandigo'),the_title('','',false)); ?>"><?php the_title(); ?></a></<?php echo $tag_posttitle_multi; ?>>
<small>
<?php printf(__('Posted by: %s in %s','mandigo'),mandigo_author_link(get_the_author_ID(),get_the_author()),get_the_category_list(', ')) ?><?php if (function_exists('the_tags') && !get_option('mandigo_tags_after')) the_tags(', '. __('tags','mandigo') .': '); ?><?php edit_post_link(__('Edit','mandigo'), ' - <img src="'. $dirs['www']['scheme'] .'images/edit.gif" alt="'. __('Edit this post','mandigo') .'" /> ', ''); ?>
</small>

</div>

<div class="entry">
<?php the_content(__('Read the rest of this entry','mandigo') .' &raquo;'); ?>
<?php if (function_exists('the_tags') && get_option('mandigo_tags_after')) the_tags(); ?>
</div>

<p class="clear"><img src="<?php echo $dirs['www']['scheme']; ?>images/comments.gif" alt="Comments" /> <?php comments_popup_link(__('No Comments','mandigo'). ' &#187;', __('1 Comment','mandigo'). ' &#187;', __('% Comments','mandigo'). ' &#187;'); ?></p>
</div>

<?php endwhile; ?>

<div class="navigation">
<div class="alignleft"><?php next_posts_link('&laquo; '. __('Previous Entries','mandigo')) ?></div>
<div class="alignright"><?php previous_posts_link(__('Next Entries','mandigo') .' &raquo;') ?></div>
</div>

<?php else : ?>

<<?php echo $tag_pagetitle; ?> class="center"><?php _e('Not Found','mandigo'); ?></<?php echo $tag_pagetitle; ?>>
<p class="center"><?php _e('Sorry, but you are looking for something that isn\'t here.','mandigo'); ?></p>

<?php endif; ?>

<?php if (function_exists('dynamic_sidebar') && $sidebars_widgets[$index_mandigo_bottom]): ?>
<ul class="inline-widgets">
<?php dynamic_sidebar('Mandigo Bottom'); ?>
</ul>
<?php endif; ?>
</td>

<?php
if (!get_option('mandigo_nosidebars') && !get_option('mandigo_sidebar1_left')) include (TEMPLATEPATH . '/sidebar.php');
if (!get_option('mandigo_nosidebars') && get_option('mandigo_1024') && get_option('mandigo_3columns') && !get_option('mandigo_sidebar2_left')) {
include (TEMPLATEPATH . '/sidebar2.php');
}

get_footer();
?>


regards karl