Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-02-04T14:46:38","request-id":"c9d031f3-9316-4c8e-bc1a-07043d2585bb","client-request-id":"c9d031f3-9316-4c8e-bc1a-07043d2585bb"}}}"