If it's a demo, that's fine, but it needs to either be: Clearly marked as a demo meant for testing/fake info (e.g. "FOR DEMONSTRATION ONLY - DO NOT ENTER ANY REAL INFO INTO THIS SITE") if the site is available to the public, OR you can password-protect it so it's only visible to those who are supposed to review the demo. (Note if you decide to use the password options in Plesk to secure it, they can up to take 2 hours to go into effect)
Please make one of the changes above (either a clear notice on all pages, or add password protection so it isn't public) within 24 hours. Failure to do so will result in resuspension.
Unsuspended. It may take a few minutes to let you log in again, and the domain can take up to 2 hours to start working.