We are in the process of upgrading our servers to use the Plesk control panel right now so you won't be able to log in to existing accounts or create new accounts until this process is done. Our plan is to copy over all users to the new system automatically. During the upgrade process websites won't go inactive or be suspended, and your website will remain online. We're really excited to offer this new control panel. You can follow us on Twitter and like us on Facebook for the latest news. If you need help with anything don't hesitate to contact support. Thank you for your patience during this upgrade to Plesk.