I noticed the same thing yesterday too that after my fire tv cube updated it stopped working. I sent the error to the developers.
Unable to start activity ComponentInfo{com.niklabs.pp/com.niklabs.perfectplayer.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method ‘android.content.res.Resources android.content.Context.getResources()’ on a null object reference
Same thing here.
My fireTV lite stop working.
My fireTV 4k still working as usual.
Where to get a copy of 1.4.2?
I tried from apkpure, but it doesn’t install.
Apkmirror doesn’t go as far, it have 1.4.7 and newer.