Lord have mercy. This should have been mentioned at the very beginning. That package is way to old for Y’all to be using it. That package is so old developers removed it from repository. Open Konsole, become root and run:
# urpme kernel-headers
Write down (copy and paste) any other packages removed. Now run this:
# urpmi kernel-release-headers kernel-release-desktop-devel kernel-release-desktop-devel-latest
That should readd any packages that were removed. But to be safe check and see if there are any packages in your removed list that weren’t installed with that command and use ‘urpmi’ in Konsole to install them back. See, that just isn’t that hard to do.
Now reboot and when you do remove any and all virtualbox and dkms packages. Now reinstall them.
Let us know what happens. Ask if you have any questions or problems. But you really, really need to do this.
Post edit: If removing dkms removes any other kernel modules then you want to reinstall them with the new kernel-release-headers. Just follow same procedures above. Copy and paste somewhere all removed packages and then reinstall them.