I don't really know how that app works, but if there's a problem with the .apk, the main thing you can do is re-download the .apk and try again
this dosent answer my question of what a apk is I’m not very computer savvy is it a file or something? Because the last version of the game works fine so it’s something that’s been added in the last update got the same message with another game I try to play and I want to try fix it myself if it’s a easy fix