...the ads are not working

I saw a skinny add for Premier Inn, but had moved away from teh page by the time it caught my eye. Then I have been trying to refresh to find it again (I am hoping there is some sort of discount attached, or maybe some revenue for MN if I click thru from here to make my booking rather than going via google ).

But both ad positions (banner and skinny one) are showing an error......bring them back...