can not open my premiere beta project as I updated to the newest version

I am in a very serious crisis as the premiere pro Project, or it's previous auto saves that I have been working on are not accessible anymore. I am able to create new project on premiere beta, however I can not open, or import the project that I have been working on. 

tried to re install premiere beta. did not work. 

this issue started happening after I have updated beta to the latest version. 

please help as this is a major issue that is completely killing very valuable time,