You might see this error message above the login form, if you tried to follow a LINK from an EMAIL that has been sent to you using the Send fact to a friend function by another user. If that user chose to give you permissions, he has entered a period (from - to), which is currently over.

If you need to see the information, please contact the person that sent you the oritinal email, and ask him to send it again and give you further permissions.