Android input and save data won't work on oreo

I’ve been making a game for android mobiles and i encountered some bugs in my game…firts of all my game does not save any data in oreo devices but works fine on others including mine (Marsh mellow) it ask for permissions to write on storage but it never did, another problem is that when i call android input back it wont work on oreo either…on other device work with charm…am i missing something that has been changed the way android works in oreo since its the latest API , any help?…uest.angrywife this is the link to my game if you want to witness the problem by yourself