Well, can you maybe… I don’t know… describe what the problem is you’re having? 
Or, alternatively: someone is developing a new version of the Denon binding you are trying to set up. See:
https://community.openhab.org/t/denon-marantz-2-0-binding
You might want to give it a try. You can set up your Denon receiver via PaperUI and autodiscovery, it is a bit more user-friendly.