Alan Delval

Because it worked for me. 🙂

but, both plugins work.

Try using http://ww.wp.xz.cn/extend/plugins/apc/ as object cache, with batcache.

WP/wp-content/object-cache.php

Use something like:

<?php
$rating = get_post_meta($post->ID, 'rating', true);
$votes = get_post_meta($post->ID, 'votes', true);

$votes_num = ($votes > 1) ? 'votes' : 'vote';
?>
<div class=ratings>
<ul class="rated max-rating" title="<?php echo $rating; ?> / 5">
<li class="rating" style="width:<?php print ($rating * 16); ?>px"><span class="average"><?php echo $rating; ?></span></li>
</ul>
<div class="meta">
<strong class="votes"><?php echo $votes; ?></strong> <?php echo $votes_num; ?>, <strong><?php echo $rating; ?></strong> promedio.
</div>
</div>

Something is wrong with your theme. Could be any post with bad HTML code.

The server would not send PHP code directly. Try downloading again the plugin.