Unable to use Updater after upgrade to 7.5.4

[anthony@]

Unable to use Updater after upgrade to 7.5.4

Error message reads:

0: /usr/local/psa/admin/htdocs/server/autoinstaller_releases.php:23 psaerror(string "AutoInstallerManager::getAutoInstaller() failed: AutoInstallerManager::_autoInstallerCall() failed: autoinstaller failed: Auto-installer does not work inside Virtuozzo environment. Refer to your service provider in order to obtain Plesk updates.")

Anyone know why this is coming up after the upgrade and how to fix it?

Thanks,

-Anthony