I too get the Failed to start Load Kernel Modules error message during the boot process. The system seems to run fine though but I still want to fix this issue.
When I use journalctl I get this output:
systemd-modules-load: Failed to find module 'vfs_monitor'
$ uname -r
$ modinfo vfs_monitor modinfo: ERROR: Module vfs_monitor not found.
Any help is appreciated!