have you installed it ?
think its like skygo app now defunct
not sure its officially supported either seen a few workarounds in past
will maybe look at it
update
btsport app needs google play services installed google play services but still no go mate no real surprise as not supported on stick there was a way before but cannot find the info but maybe like sly updates killed the option sorry mate
updated firmware beginning of the year killed it mate same route sly went down i think
install google play store, google play services & btsport apks gets the app to open but needs a method like mouse/keyboard to operate you could try cetusplay.remote on phone to try logging in best of luck mate