peterdebruij - 7:02 pm on Aug 4, 2013 (gmt 0)
It is caused by your Google Maps. I have the same problem and I don't know how to solve it. Somehow Google Crawls your page and hits the Google Maps error message "Sorry we have no imagery here". Google maps should only return that if there are no pictures at that zoom level. If you 'fetch as google' however you don't see the message.