Omixon HLA Twin and Explore use the machine id file, to generate a hardware key – a unique machine identifier for the Omixon application. The file must be accessible in /var/lib/dbus/machine-id, and it is a randomly generated by dbus-uuidgen, typically invoked by the post-install script of a D-Bus package. It can also be a symlink to /etc/machine-id, but the file has to be present in either way on the path above. In some Red-Hat distributions this path does not exist.
To fix it, run
$ dbus-uuidgen > /var/lib/dbus/machine-id
If you don’t have dbus-uuidgen , it’s in the dbus package, which can be installed by issuing
$ yum install dbus .