public void TrackException(Exception e) {
ExceptionTelemetry excTelemetry = new ExceptionTelemetry(e);
excTelemetry.SeverityLevel = SeverityLevel.Critical;
excTelemetry.HandledAt = ExceptionHandledAt.Unhandled;
excTelemetry.Timestamp = System.DateTimeOffset.UtcNow;
_telemetry.TrackException(excTelemetry);
}