我在调用API时收到内部服务器错误，可能与Azure中的权限有关吗？

请参阅以下代码：

using (var request = new HttpRequestMessage(HttpMethod.Get, Settings.GetMeUrl))
                        {
                            request.Headers.Accept.Add(Json);

                            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", Request.RequestContext.HttpContext.Session[SessionKeys.Login.AccessToken].ToString());

using (var response = await client.SendAsync(request))
{
//response has internal server error 500 ( see below)
....
}

Exception returned: {StatusCode：500，ReasonPhrase：'Internal Server Error'，版本：1.1，内容：System.Net.Http.StreamContent， Headers ：{Transfer-Encoding：chunked request-id：832422ea-f685-4119-8616-fa544b681467 client-request-id ：832422ea-f685-4119-8616-fa544b681467 x-ms-ags-diagnostic：{"ServerInfo"：{"DataCenter"："East US"，"Slice"："SliceB"，"ScaleUnit"："000"，"Host"："AGSFE_IN_4"，"ADSiteName"："EST"}}持续时间：356.9558 Cache-Control：私人日期：星期六，2016年5月7日14:36:11 GMT服务器：Microsoft-IIS / 8.5 X-Powered-By：ASP.NET Content-Type：application / json}}

Request content: {方法：GET，RequestUri： 'https://graph.microsoft.com/v1.0/me'，版本：1.1，内容：，头：{接受：应用/ JSON授权：承载eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6Ik1uQ19WWmNBVGZNNXBPWWlKSE1iYTlnb0VLWSIsImtpZCI6Ik1uQ19WWmNBVGZNNXBPWWlKSE1iYTlnb0VLWSJ9.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.jn3d3YpyEIWH5mDSXl_G0ugyFSqTa-hwYxAgI4N 6b_Fu6y9gWu8acwepztJy4LSuZB327jQg_l2ZQuYIVZCNE-GtB9ZuiUOne5nJghrGvLNM1kgCyg4XnafU8REb88O0JfalB7XbvFBNvPfV9XmoGJ73cIutTz1DDwthMBP0HS2-MnscEr9QBggMsDoHazgSV6j8D6mpvTPRe1AZLZ6el9WuZUleezmEtDXtEU4GuBKSPcUN7fB-wVzW3ed6xyBgQlpb5Znqp6-8hyZ3Iz4wYapn34i353eGAaFC87mAm8kuq1RDXkPAgFN1RPkwX1SWWTQu6q2fdpfbkDVmaiCmnA}}

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