We have been using http://www.azam.info/wp-login.php to login to our blog's WordPress interface for years. However, it doesn't work anymore all of a sudden. We haven't added any scripts or plugins.

In doesn't work in any browser. In Google Chrome it says: "This webpage has a redirect loop". In Firefox it says: "The page isn't redirecting properly. Firefox has detected that the server is redirecting the request for this address in a way that will never complete. This problem can sometimes be caused by disabling or refusing to accept cookies."

How can we login to our blog please?

Thank you very much. I appreciate your assistance.