Thank you for the confirmation. Unfortunately, I am out of suggestions what might be causing the error. It will be best if you can open a ticket to our support team so they can further investigate the issue. To sign-in to support and open a ticket go to
If you got your license from a reseller, your reseller should provide support for you. If the reseller does not provide support, here is an alternative to get support directly from Plesk:
If you got your license from a reseller, your reseller should provide support for you. If the reseller does not provide support, here is an alternative to get support directly from Plesk: