The Blogger Account Details have been reset.
Today when I logged in to my blogger account I found that all my blogger account stats have been reset. I post a question in the Blogger forum about the issue and found out that Blogger users world wide are having the same problem. Check whether you are having the same issue. Now it is like the blog is starting from beginning. No stats, no details and no way to find out which articles were favorite unless you are using Google Analytics. Hope that they'll find some kind of a solution for this soon.