Stopped working

This poll plugin has been great and has been working for well some time, however, this morning they have just stopped. We do not believe we have done anything to interfere with the plugin, but cannot get them started back up.

Any thoughts – here is an example…

http://www.caravanguard.co.uk/news/how-long-have-you-been-a-motorcaravanner-12206/

Neither the vote or vote results buttons work despite the poll form displaying correctly.