Black square

Hi

I have tried your plugin, but I can not get it to work.
All I get is a black square where the photosphere should be.
I use this input in my post: [photosphere]http://projektweb.jcoop.dk/wp-content/uploads/2013/05/PANO_20130427_170750.jpg[/photosphere]

http://wordpress.org/extend/plugins/wp-photosphere/