Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-05-26T04:33:40","request-id":"11fb4d13-9062-4ba5-ab12-a93549286114","client-request-id":"11fb4d13-9062-4ba5-ab12-a93549286114"}}}"