i use latest archman xfce version 2018.06  today i noticed that at boot i have this message:

sudo systemctl list-units --state=failed
  UNIT                         LOAD   ACTIVE SUB    DESCRIPTION                                                                       
● systemd-modules-load.service loaded failed failed Load Kernel Modules

systemctl status systemd-modules-load.service
● systemd-modules-load.service - Load Kernel Modules
   Loaded: loaded (/usr/lib/systemd/system/systemd-modules-load.service; static; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2018-06-22 09:05:09 CEST; 12min ago
     Docs: man:systemd-modules-load.service(8)
           man:modules-load.d(5)
  Process: 541 ExecStart=/usr/lib/systemd/systemd-modules-load (code=exited, status=1/FAILURE)
 Main PID: 541 (code=exited, status=1/FAILURE)

cze 22 09:05:09 aristo systemd[1]: Starting Load Kernel Modules...
cze 22 09:05:09 aristo systemd-modules-load[541]: Failed to find module 'vboxsf'
cze 22 09:05:09 aristo systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
cze 22 09:05:09 aristo systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.
cze 22 09:05:09 aristo systemd[1]: Failed to start Load Kernel Modules.

so i see that is something wrong with "vboxsf"

journalctl -b | grep systemd-modules-load
cze 22 09:05:03 aristo systemd-modules-load[212]: Inserted module 'crypto_user'
cze 22 09:05:03 aristo systemd-modules-load[212]: Inserted module 'vboxguest'
cze 22 09:05:03 aristo systemd-modules-load[212]: Failed to find module 'vboxsf'
cze 22 09:05:04 aristo systemd-modules-load[212]: Inserted module 'vboxvideo'
cze 22 09:05:04 aristo systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
cze 22 09:05:04 aristo systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.
cze 22 09:05:09 aristo systemd-modules-load[541]: Failed to find module 'vboxsf'
cze 22 09:05:09 aristo systemd[1]: systemd-modules-load.service: Main process exited, code=exited, status=1/FAILURE
cze 22 09:05:09 aristo systemd[1]: systemd-modules-load.service: Failed with result 'exit-code'.

i think after kernel update to 4.17 there is no module vboxsf i try uninstall all virtualbox package but error still exist

edit: ok i simply fix this by delete this file

sudo rm /etc/modules-load.d/virtualbox.conf