Have a problem when integrating a fileterable portfolio to Directory theme

I've added this code to home-listing.php file in order to display a fileterable portfolio (<?php echo do_shortcode( '[flatfolio layout=192]' ); ?>:wink:.

The problem I'm having is filtering buttons are starched in my site (http://bit.ly/1BGGWcd).
Normally it should appear like this: http://bit.ly/1HZ2VkQ

I've already notified the plugin developer but didn't received a feedback yet. May be this is a problem with the theme. Can someone please check my site and provide me a solution?