I am sorry… well – indeed you are a Beta-Tester. We did not have the PVR-Addons for the Pi yet and we do not have the hardware to test them… During my testing I forgot to set up the repository the right way for the PI packages. This did not occur when I had the Odroid packages installed before. Now I fixed the Repository and you can install the Addon. The „installation failed“ should not come up anymore.
Thanks for your help!