public override void OnException(HttpActionExecutedContext context)
 {
     var loggingHelper = new LoggingHelper();
     loggingHelper.TraceError(context.Exception);
     ErrorLog.GetDefault(HttpContext.Current).Log(new Error(context.Exception));
     context.Response = context.Request.CreateResponse(
         HttpStatusCode.InternalServerError,
         new ErrorDto
         {
             Code = 0,
             Error = "Oops, something went wrong!"
         }
         );
 }