System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentNullException: Value cannot be null. Parameter name: url at System.Web.HttpResponse.Redirect(String url, Boolean endResponse, Boolean permanent) at dValuate.EvalRunTime.EvaluateIt(OpenControl& MyForm, Control& ControlPlace, HttpServerUtility& Server, HttpRequest& Request, HttpSessionState& session, HttpResponse& Response, String constring, String[] par, Int32 parcount, String Senderid) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at SiennEngine.PBW.Run_OpenControl(String key, String cid, Boolean DebugMode, Boolean CreateAssembly, Boolean RunFromAssembly, UserControl& MyForm, String SenderId, HttpServerUtility& Server, HttpRequest& Request, HttpSessionState& session, HttpResponse& response, String constring, String[] par, Int32 parvulling, String source, String sourcefunction, Control& ControlPlace) in C:\Workspaces\SIENN ML\Dev\SiennEngineML\Sienn4MLMainAzure\Sienn4Engine\PBModules\PBW.vb:line 38657