'Play Games Services suddenly stopped working In a already published unity game

We have a published games in playStore, with monthly updates. It uses play games services to save/load user data.

It had been working for about 3 years till last month, that we got a lot of users reporting issue with it.
we tested it and see that suddenly play games save is not working even on all our older versions (which we are sure it had been working).

It is giving us this log InternalOpen has failed: com.google.android.gms.common.api.ApiException: 10: IllegalStateException: Must Include Drive.Scope_APPFOLDER to use snapshots

Even If its some kind of google bug, I don't know where I should report it. I'm really confused what's happening and would appreciate any given solution.



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