You installed Acronis Cyber Backup 12.5 Agent on a machine with non-server operating system (Windows 7/8.1/10 etc.) that has a Hyper-V role enabled. A Workstation license is assigned to this Agent.
To check whether Hyper-V role is enabled on the machine, open Windows Services (Start -> Run -> Services.msc) and look for services with names starting with "Hyper-V", e.g. Hyper-V Virtual Machine Management. If such services are present in the list, then Hyper-V role is enabled.