why google sign in not working in mod apk?

mod apk   Dan mod apk

why google sign in not working in mod apk? I'm trying to change apk through apk editor but google OAuth stops working As far as I understand,

A reputable MOD will remove these permissions, ensuring your phone remains safe Because these APKs are not created by the original developer, 55 Club is modified version of original apk

teen patti 51 bonus ModRadar displays all MOD APK Games & Premium Apps for Android devices You can find and download all mods with no virus  REXDL · We Are Warriors MOD APK 0 Android · Beat Racing MOD APK 6 Android · I, The One MOD APK 02