The case of the missing blue skies

For some reason the Flickr photo lightbox I have set up is not showing up in my sidebar. It was fine up till yesterday, but suddenly today it has disappeared. Need to investigate a bit, so I apologise for the blank space under the title 'Blue skies'. This time I selected for the complete photo to be shown instead of just rotating thumbnails, which are great to look at but one can not get all the details in such a small picture. Hope to have it up soon, the pics of the skies are really incredible.

Edited to add: Looks like a problem with Flickr as I am not even able to open the site. Hope it gets resolved soon and on its own!