Upload an image does not respond

Hi. When clicking the link “Upload an image” i expect the media popup to show, but nothing happens.
The link refers to http://mydomain.dk/wp-admin/post.php?post=964&action=edit&message=6#
I dont know if this error helps: event.returnValue is deprecated. Please use the standard event.preventDefault() instead.

I have tried deactivating all other plugins than EDD and EDD Download Images, shifting to TwentyFourteen theme. Nothing works.

http://ww.wp.xz.cn/plugins/edd-download-images/