[Plugin: The Dropbox Plugin] Not working in 3.3

Thanks for this great plugin, I’m using it to get access to my dropbox from work ??
But after upgrading to wp3.3 it stops working. On the post where I included the [dropbox] shortcode only a complete empty page is delivered.
I’ve switched on WP_DEBUG but to no avail.

Does anybody have similar problems?

https://www.ads-software.com/extend/plugins/dropbox-plugin/