I get "unauthorized 401" message when call to my api

I´m use Auth0 ASP.NET Core Web API SDK Quickstarts: Authorization in my api and this Auth0 Single Page App SDK to call my api but always get error 401

const token = await auth0.getTokenSilently();

  const response = await fetch("https://localhost:44307/api/client", {

    headers: {

      Authorization: `Bearer ${token}`

    }

  });

la solución fue agregar el parametro audience in

auth0 = await createAuth0Client({

    domain: config.domain,

    client_id: config.clientId,

    audience: config.audience,

    scope: config.scope

  });