Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-24T22:12:30","request-id":"a396a670-c1e9-484b-9b5b-d3850f3abf9c","client-request-id":"a396a670-c1e9-484b-9b5b-d3850f3abf9c"}}}"