widget returns error

You can see it in the footer (middle widget): taverne-deoase.be

I have set the widget like this: [venue id=4dd57262c65bee535a81c9ee]
You can check it on foursquare: foursquare.com/v/de-oase/4dd57262c65bee535a81c9ee

Thank you for your help!

http://wordpress.org/extend/plugins/foursquare-venue/