One reason could be, the driver installation is not complete in the parent VM. to confirm this, revert to the parent VM snapshotpower on and reboot. Check whether the same message is displayed there. If yes, install the driver, reboot then shut down. take a new snapshot and provision pools usingthat snapshot.

If the above steps does not solve your problem , please let me know whether you face the same issue with both sysprep and quick prep