Autosave problem

Hi! I have encountered a problem when I try to edit a page. Always when I go to edit page, for some reason all content is missing. This happened on all pages, and it is written that this is a auto save of my page. And I can go back to see older revisions. How can I get this problem fixed? Is really hard editing when I always have to go back and find a older revision on the page because of a auto save that make the whole page blank…

The page I need help with: [log in to see the link]