This app has some problems

So for about 3 weeks now every time I want to play Pokémon go I have to delete the app from my phone and re-download it. When I get out of the game and go back the screen freezes and if I delete the app and download it back it works fine. I have also tried logging out and going back but the app continues to be frozen on the home game screen. But, over all I love the game when it works and the second generation I like. I would appreciate it if you could fix the app for me.

BED333 about Pokémon GO, v1.27.4