I'm using XOOPS v2.2.6 that comes with my control panel. Top Posters is part of its 'System' module (xoops/modules/system/templates/blocks

When users post on the site the top posters block does not update; the count is incorrect. I have cleared the cache and templates_c folders, as well my browser's cache, cleared the sessions and updated the system module from the admin. Nothing worked. Below is the template text. How do I fix this?

Template - system_block_topusers.html

<table cellspacing="1" class="outer">
<{foreach item=user from=$block.users}>
<tr class="<{cycle values="even,odd"}>" valign="middle">
<td><{$user.rank}></td>
<td align="center">
<{if $user.avatar != ""}>
<img src="<{$user.avatar}>" alt="" width="32" /><br />
<{/if}>
<a href="<{$xoops_url}>/userinfo.php?uid=<{$user.id}>"><{$user.name}></a>
</td>
<td align="center"><{$user.posts}></td>
</tr>
<{/foreach}>
</table>