Still problems with bbswitch package?

I guess that bbswitch package, as well as what is done in nvidia packages, should remove old configure files like


during postintall phase because it prevents dkms install to work properly when new kernels are installed.

If I am right, this is an old problem with the bbswitch packages in OMV.

During installation of the new kernel I got,

Error! Could not locate dkms.conf file.
File: /var/lib/dkms/bbswitch/0.8-5/source/dkms.conf does not exist.
ERROR: 'script' failed for 
error: %posttrans(kernel-release-desktop-4.15.7-1omv-1-1.x86_64) scriptlet failed, exit status 4

The only option now is to manually run dkms install for bbswitch and also for nvidia drivers because dkms is stopped due to errors with bbswitch.