I’m having the same issue!
8 of 10 times I get that error on WordPress 3.6.
You can check the site out here: http://www.metalsludge.tv
Please help, I might have to switch to another poll plugin!
Thanks
Jimmy
never mind.. I figured it out:
this is my code:
<?php $plink = get_setting('headline2');?>
<?php $postid = url_to_postid($plink);?>
<?php echo get_the_post_thumbnail($postid);?>
<h2>
<a href="<?php echo get_setting('headline2');?>"> <?php echo get_the_title($postid); ?> </a>
</h2>
