{
  "message": "An error has occurred.",
  "exceptionMessage": "未将对象引用设置到对象的实例。",
  "exceptionType": "System.NullReferenceException",
  "stackTrace": "   在 SiteServer.CMS.Plugin.Apis.ContentApi.GetContentInfo(Int32 siteId, Int32 channelId, Int32 contentId)\r\n   在 SS.Hits.Controllers.HitsController.AddContentHits(Int32 siteId, Int32 channelId, Int32 contentId, ConfigInfo configInfo)\r\n   在 SS.Hits.Controllers.HitsController.Hits(Int32 siteId, Int32 channelId, Int32 contentId)"
}