I'm terribly sorry about that, that's definitely extremely disappointing. Unfortunately Unreal Engine 4 does not support building for Android 14, I've looked into it many times only to find out fairly recently that it isn't possible because it isn't supported anymore. I'm still looking into upgrading the games to Unreal Engine 5 which is apparently able to build for the most recent version of Android but I haven't been able to yet. I'll be looking into this more once the game goes live on Steam.
I've heard some people have had success running the game on an Android emulator of an older version.