Plesk virtual machine license upload fails with the following error:
Error: Uploaded license key is not valid
The license key is intended only for use with Parallels Panel operating inside the following virtual environments: Parallels Virtuozzo Containers, VMWare, Microsoft Hyper-V, Xen, KVM.
This is Plesk internal issue #PPPM1793 , which is fixed in Plesk version 12.0.8 MU #9
Upgrade Plesk to version 12.0.8