Notice that your account name says "Users Awaiting Email Confirmation". That is the group your account is in. You are placed in that group when you change your email address. To get it back to "Registered Users" you need to follow the directions in the activation email that was sent to you when you changed your email address.

If you lost that email, you can request another copy of the activation email: resend activation information

Post again if this doesn't help you.