Realised that all the images automagicaly broke on all subsites

Sometimes I wander what is going on in the WordPress universe while I am sleeping at night !?!

I just woke up and realized that all my sub-sites images are totally broken, without me doing anything else apart of sleeping at night and dreaming about the WordPress wpmu.
Now, on a serious note http://www.calldanny.co.uk being one of those sub-sites I am talking about is a client website and it leaves me with great concern, knowing that in the last 5 hours I haven't managed to resolve this issue by my self.

Please any help of yours would be greatly appreciated and I hope that someone can help me resolve this issue before my client fires me from the WordPress universe , being the only universe I find my self in happy.

Please I need help guys, I will also grant full access.