Seems like you've installed VoukoderPro and the Voukoder Connector, but you just need VoukoderPro.
With VoukoderPro you just need to check the DVR Plugin in the installation process.
Then, first create a scene in VoukoderPro (i.e. Scene > New > Simple), configure it, an then select Format: "VoukoderPro" in DVRs "deliver" tab:
It will then display a dropdown box where you can select the VoukoderPro "scene" to use. (A VoukoderPro "scene" is an export configuration pipeline)