Chromebook: can't install Channels app

I have two chromebooks. I installed Channels DVR on my newer chromebook and it works great.

I'm on vacation with my backup chromebook and when I try to install Channels DVR app, it says it's already installed even though it's not.

The web UI works on by backup chromebook, but I would like to install the android app. play.google.com seems to be confused by my having two chromebooks under my google account.

Any idea how to install Channels DVR on my second chromebook?

It turns out my second chromebook, a Toshiba Chromebook 2, is not compatible with Channels DVR.

The Chromebook 2 has never had a problem running any apps. Anyone know why it can't run Channels DVR android app?