prettyPhoto images link is double quoted.. didnt change nothing

I am having this problem that my pretty photo lightbox will not show any image or load it as bigger on click.

I checked and realised that the link was double quoted.. like this: <img src=””https://www.skiasiscenter.gr/wp-content/uploads/2012/11/1324976678_0.jpeg”” alt=””><span class=”plus_overlay”><i></i></span>

What can I do to fix this? I am sure I didnt do anything..

Site is https://www.skiasiscenter.gr check any category..