No Preview Available

When I click on certain links (using {edocmanlink}) I now get No Preview Available.   I have not changed anything,  so how do I correct this?

Examples are on the front page of www.sevenoakssociety.co.uk - Update on Brittans Lane or  Frank Marshall Award

Thank you

Peter

Hi Peter,
Could you please submit ticket on category: Edocman and provide your site url with super admin account. I will check and help you to solve this issue
Thanks
Dam