First of all I must give the exact details
My server was running but suddenly it was down
I logged on to the vCenter and saw the server has been grayed out and un-accessible
I browsed the hard disk and it seemed that the .vmx file was corrupted because although it was a .vmx file but the icon wasn’t the same as healthy vmx files
So I created another VM, moved the two files (SPSDEV01-000001.vmdk and SPSDEV01.vmdk) in the new folder and connected the SPSDEV01.vmdk file to the VM and …. That was what happened
So after that I read about it and it seems that the first mistake was creating an new VM because of the CID problem!