This content isn't available powerBi and angular

Hello i am trying to integrate my power bi reports to my angular and .net applications and i am getting "This content isn't available." Error. i follow multiple tutorials but anyone helps me to solve it

Backend controller (To get the tokens)

   public class ReportController : BaseApiController
    {
        private static readonly string Username = ConfigurationManager.AppSettings["pbiUsername"];
        private static readonly string Password = ConfigurationManager.AppSettings["pbiPassword"];
        private static readonly string AuthorityUrl = ConfigurationManager.AppSettings["authorityUrl"];
        private static readonly string ResourceUrl = ConfigurationManager.AppSettings["resourceUrl"];
        private static readonly string ClientId = ConfigurationManager.AppSettings["clientId"];
        private static readonly string ApiUrl = ConfigurationManager.AppSettings["apiUrl"];
        private static readonly string GroupId = ConfigurationManager.AppSettings["groupId"];

        [HttpGet]
        [Route("get")]
        public async  Task<HttpResponseMessage> EmbedReport(string reportName)
        {

                var error = GetWebConfigErrors();
                if (error != null)
                {
                    return CreateApiResponse(HttpStatusCode.BadRequest, reportName);
                }

                // Create a user password cradentials.
                var credential = new UserPasswordCredential(Username, Password);

                // Authenticate using created credentials
                var authenticationContext = new AuthenticationContext(AuthorityUrl);
                var authenticationResult = await authenticationContext.AcquireTokenAsync(ResourceUrl, ClientId, credential);

                if (authenticationResult == null)
                {
                      return CreateApiResponse(HttpStatusCode.BadRequest, reportName);
                }

                var tokenCredentials = new TokenCredentials(authenticationResult.AccessToken, "Bearer");

                // Create a Power BI Client object. It will be used to call Power BI APIs.
                using (var client = new PowerBIClient(new Uri(ApiUrl), tokenCredentials))
                {
                    // Get a list of reports.
                    var reports = await client.Reports.GetReportsInGroupAsync(GroupId);

                    // Get the first report in the group.
                    var report = reports.Value.FirstOrDefault();

                    if (report == null)
                    {
                        return CreateApiResponse(HttpStatusCode.BadRequest, report);
                    }
                    // Generate Embed Token.
                    var generateTokenRequestParameters = new GenerateTokenRequest(accessLevel: "view");
                    var tokenResponse = client.Reports.GenerateTokenInGroup(GroupId, report.Id, generateTokenRequestParameters);
                    Report myReport = client.Reports.GetReportInGroup(GroupId, report.Id);
                    if (tokenResponse == null)
                    {
                        return CreateApiResponse(HttpStatusCode.BadRequest, report);
                    }
                    // Generate Embed Configuration.
                    var embedConfig = new ReportConfigViewModel()
                    {
                        EmbedToken = tokenResponse,
                        EmbedUrl = report.EmbedUrl,
                        Id = report.Id
                    };
                    return CreateApiResponse(HttpStatusCode.OK, embedConfig);
                }

            }

Angular Js Controller

        $scope.service.get("Hola").then(
            function onSuccess(response) {
                $scope.embedUrl = response.data.embedUrl;
                $scope.accessToken = response.data.embedToken.token;
                debugger;
            },
            function onError(response) {
                debugger;
            }
        )

html

<powerbi-report embed-url="embedUrl" access-token="accessToken"></powerbi-report>

if anyone can help me i will be greatfull