DSTV App stopped working on Google TV Chromecast

Dstv now stopped working on my Google TV Chromecast version 12. DSTV now app version 2.5.7. The latest version of the DSTV app is 2.5.9. When I try to use the DSTV Now app I get a prompt to update. When I try to update get a message that my device in not caompatible. Works fine with Netflex, Prime, etc, etc. One would think that any changes made to the app would be backward compatible. Shocking support service, no one can fix the problem