Pinterest Button not showing any thumbnails anymore

I just noticed that since a few days back that my pinterest button isnt showing any thumbnails anymore when someone clicks on the pin-it button.

SCREENSHOT: https://i.imgur.com/YFMgx4a.jpg

Does anyone know whats wrong?

the following code im using for both facebook and pinterest is:

<div align="center" style="background: url(https://funny-pictures-blog.com/wp-content/uploads/2013/03/arrows.png);">
 <iframe src="//www.facebook.com/plugins/like.php?href=<?php echo get_permalink($id); ?>&send=false&layout=button_count&width=80&show_faces=false&action=like&colorscheme=light&font=arial&height=20&appId=1961xxxxxxxx" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:80px; height:20px;" allowTransparency="true"></iframe> 

 <a>&media=<?php if(function_exists('the_post_thumbnail')) echo wp_get_attachment_url(get_post_thumbnail_id()); ?>&description=<?php echo get_the_title(); ?>" class="pin-it-button" count-layout="horizontal"><img border="0" src="//assets.pinterest.com/images/PinExt.png" title="Pin It" /></a>
<script type="text/javascript" src="//assets.pinterest.com/js/pinit.js"></script></div>

Is the code broken or whats going on?
You can try it for yourself here: https://funny-pictures-blog.com/2013/03/17/funny-polar-bear-dancing/