Windows 11 post update, hyper-v doesn't see my virtualization server

Hello,

I'm using Windows 11 Pro 21H2 (registered 15.12.2021)

After my OS gets an update, I open Hyper-V Manager, but I can't find my virtual machine.

I see the disk in D:\MyVirtualMachines folder but not in hyper-v manager.

It says connect to server. I choose Local Computer.

I get the below error after choosing this option.

This subject is very important to me.

Please I need urgent support.

Thank you,