Server Error in '/' Application.

String reference not set to an instance of a String.
Parameter name: name

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentNullException: String reference not set to an instance of a String.
Parameter name: name

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[ArgumentNullException: String reference not set to an instance of a String.
Parameter name: name]
   System.Globalization.CultureInfo..ctor(String name, Boolean useUserOverride) +14788500
   dc.ctrlLogin.Page_Load(Object sender, EventArgs e) +280
   System.Web.UI.Control.OnLoad(EventArgs e) +99
   System.Web.UI.Control.LoadRecursive() +154
   System.Web.UI.Control.LoadRecursive() +251
   System.Web.UI.Control.LoadRecursive() +251
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4082


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.3930.0