When I 'm installing from Google Play Store Minecraft bedrock edition on my Android 6.0 version 1.5.0.1 and I open it one message appears (it appears you don't downloaded Minecraft from play store go do that). Before it I was in beta 1.5.0.0 and it didn't appear  but when I want to go back to alpha 1.2.13 this problem appears too. Please help me.

Specify of my tablet android 6.0 Krüger&Matz EAGLE 1066