00:02:39.214 ERROR [COM]: aRC=VBOX_E_INVALID_VM_STATE (0x80bb0002) aIID={5eaa9319-62...
In this case the VRDP IP and port are saved in the state and you must start the VM without specifying them. The error displayed is: ERROR: The machine is not mutable (state is Saved) Details: code VBOX_E_INVALID_VM_STATE (0x80bb0002), component Machine, interface IMachine...