I am currently unable to access my MSE account (I’m user number 15381). For years I used to connect from Yahoo without problems. When I do that now I find myself connected as an entirely new, empty account. I found that I can use the "account recovery page", but it still creates a brand new account, even though it recognizes my email as an already registered one.
Another strange thing : when in math mode, I see an empty account with 0 rep. When in meta mode I see my normal account with my current rep,22056.
How can I fix this ?
Update 09/11/2014 : Yesterday I could already access my old account, and today the two accounts are merged. Thanks to all those who helped me on this.