login callbacks do not trigger

[Mohamed1226]

i make all steps in the package

but this functions not executed

/// Callback method invoked when the login process fails.
@OverRide
void onFailure(String message) {}

/// Callback method invoked when the user logs out.
@OverRide
void onLogout() {}

/// Callback method invoked when the login process starts.
@OverRide
void onStart() {}

/// Callback method invoked when the login process is successful.
@OverRide
void onSuccess(String accessToken) async {}

and get this when try to fetch user

I/flutter ( 8710): User Code: 3
I/flutter ( 8710): User Message: Status: UNAUTHORIZED_ACCESS_ERROR, Code: 3, Extras: httpResponseCode=401, Message: Request failed because the user is not authorized to access the requested resource.
I/flutter ( 8710): User: null