at System.String.ConcatArray(String[] values, Int32 totalLength) at System.String.Concat(String[] values) at ULISSeLib.Authentication.OrdineAvv.HeaderParser.UsingAuth(HttpRequest request) at ULISSeLib.eeSystem..ctor(HttpContext context) at ULISSE2.errori.cierrori.Page_Load(Object sender, EventArgs e)