OK - depending on the frequency on which have it connected to WiFi, a complementary app may be missing necessary updates for the Google App to update as expected. Unfortunately, not all Play Store error codes are documented and that seems to include the -104. Alternatively, if you prefer, you could root it and then proceed to playing around with system apps (like removing and reinstalling the Google App) and subsystems so far as need may be as there is a fortunately a stock ROM for the Verssed Motion E1.1 online you can reload if anything should ever go wrong firmware wise.