VOD isn't available via the PVR Client/Live TV (just PPV Channels are). It's no longer available on the Video Addon either. The only option for you for the VOD content would be to use the STB Emulator. Bear in mind that since the new security credentials requirement some people have managed to configure & use the emulator as well as the PVR Client/Live TV or the Video Addon but some can't so don't be surprised if you run into problems.
If you do & can't sort them out you'll have to just continue to use one or the other.