Eventually, Google has shutdown the old Analytic's
After the sunsetted of old version now users only use new UI (user interface) for Google analytics. This is an actually long time coming.
In Marach 2011, Google released new UI and became available to everyone an upcoming months after that.
Many don’t want to upgrade, so Google gave users a way to access the old Analytics.
But yet, over a year later, Google has decided to entirely stop supporting the old interface and need users to use new one.
Those who have not upgraded are not smiling because they are missing some conversant reports. But it is what it is and you got to upgrade.
Forum conversion at Google Analytics Help and WebmasterWorld.