You get this error in case when your account is banned by our security system. The reason why accounts are banned is a great number of logins to the account. In your case probably your passwords were revealed and spread over the Internet so that a lot of people gained access to your account. Or, the second reason — you’ve logged to the site from many different IPs. Don’t worry; any transactions can’t be made while your account is banned. To un-ban your account you should contact our support service. Our agent will help you change your password and un-ban your account.