It's not the app. It's the way KAT is now processing the
torrents. Yes, the regular subscription feeds from TVShows hasn't
been updated in a LONG time, but it still processes custom
subscriptions, however, the fault is with KAT and how they push
torrents through Torcache now.
Regardless, the app is pretty much useless unless KAT makes a
change back to how it was a few months ago.
It seems that the developers, have abandoned the app a long time ago :( I´m not sure though, there hasn´t been a word from them in months. Very odd, how they suddenly disappeared and left everything to die.
Maybe use an app where Kat subscriptions work just fine (Otomatic, Automati, Catch)?