I got the critical message error and was promoted to do the following steps listed in the guide for solving the critical error. I repaired my disk, didn't see any firewall settings from stopping the VM and uninstalled the Parallels desktop and then reinstalled as well as rebooted. Now when I open up the VM it acts as if its running and functioning yet the screen is black, nothing happens or functions, just black. Then when I try and shut it down it just loads for a very long time and stays loading while nothing ends up happening. So I can't shut it down or even get it to actually open, Does anyone know what the issue is?