Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-30T23:55:56","request-id":"4ce13a1b-bb4b-4256-80b6-90fb19016adc","client-request-id":"4ce13a1b-bb4b-4256-80b6-90fb19016adc"}}}"