@ylatef this error is completely normal, the daemon is started without the modules loaded, so once you have this error, press Enter then you can reboot.
The script is not compatible with recalbox-wpaf as it can't have the possibility to write in the bus of the pi to shut it down. If you would like to use this script, do not use recalbox-wpaf and if you would like to use recalbox-wpaf, don't use this script but you won't have full shutdown of the case.