Since the second set of breadcrumbs also appears on the main page of the store, check your includes -> templates -> YOUR_TEMPLATE -> common -> tpl_main_page.php and check for the following lines of code:
Code:
<table width="100%" border="0" cellspacing="2" cellpadding="2">
<tr>
<td class="breadCrumb"> <a href="http://www.books-japan-online.com/test/">Home</a> ::
Books Japan News
</td>
</tr>
</table>
and delete it
The above code will appear just below
Code:
<!-- bof breadcrumb -->
<?php if (DEFINE_BREADCRUMB_STATUS == '1' && ($current_page!='index' || (int)$cPath>0 )) { ?> <div id="navBreadCrumb"><?php echo $breadcrumb->trail(BREAD_CRUMBS_SEPARATOR); ?></div>
<?php } ?>
<!-- eof breadcrumb -->