Cubase won't let me load up any auto saves!

Hi i’m having problems with my version of Cubase 6.5 crashing whilst i’m working.
When I try to load up the auto save I get the following messages:
“Project “Track Title” v3-06 was created with Cubase 1.x. This program version cannot load it”

Has anyone else been getting this problem and if so do you know what to do ?