vdsm-hook-vhostmd is now optional on RHV-H and it requires vhostmd.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Important: Red Hat Virtualization Host security and bug fix update [ovirt-4.4.7]), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2021:2736