Innogy SmartHome - "Unexcepted API error: Remote access not allowed"

I changed the binding to refresh the tokens now. As I do not have the problem, I cannot test it. So please try it:
http://www.ollie.in/wp-content/uploads/2018/02/org.openhab.binding.innogysmarthome-2.3.0-SNAPSHOT-180209.jar

Thanks!