Productlist results show up empty

Hi guys,

I happen to have a problem with the Plugin.
It worked flawlessly at first, but after updating my theme, thins went wrong. Unfortunately I can’t rollback to my previous theme version.

What happens is that as soon as a productlist is ready and on my page,
the page shows a table, but the table is empty. It contains a link to the homepage of bol.com, but not to the product and also there’s is no picture whatsoever.

Example at: floriswakka.nl/darkshadows.

Word Press latest version, Php 5.3, API setting of bol are also OK.

I don’t know what to do…
Many thanks for any help!

http://wordpress.org/extend/plugins/bolcom-partnerprogramma-wordpress-plugin/