Looking into this further, we got a report that you marked our emails as spam more than once. This says that you don't want any emails from us, ever. To prevent the system sending you more emails, it closes your account.
You have to manually reopen the account when this happens.
To prevent this from happening, please unsubscribe instead of marking it as spam. The spam button is designed to stop unsolicited emails. Unsubscribe is for emails that you signed up for but don't want anymore.
You can adjust which emails you get from us by going to "My Profile" located at the top of the screen.