Parallels 12 for Mac keep running into same problem

Hello I am trying to get Parallels 12 for my Mac but when I startup the Parallels Desktop I get exactly this;
Unable to connect Hard Disk 0.
A file or device required for the operation of Hard Disk 0 does not exist or is used by another process, or you have no permission to access it. The virtual machine will continue running, but the device will be disconnected.
I do not understand why this appears, if someone could be so kind as to help me with this !
Thank you very much!

 

Hello, what is your macOS version?
What is your virtual machine size?