Server Error in '/' Application.

Object reference not set to an instance of an object.

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.NullReferenceException: Object reference not set to an instance of an object.

Source Error:


Line 39:         
Line 40:         Item courseItem = Sitecore.Context.Database.GetItem(Request.QueryString["training"]);
Line 41:         LookupField descriptionItemField = courseItem.Fields["Course"];
Line 42:         Item descriptionItem = descriptionItemField.TargetItem;
Line 43: 

Source File: e:\inetpub\wwwroot\OMPSitecore\Website\SubLayouts\Main\Training Registration.ascx.cs    Line: 41

Stack Trace:


[NullReferenceException: Object reference not set to an instance of an object.]
   Layouts.Training_registration.Training_registrationSublayout.Page_Load(Object sender, EventArgs e) in e:\inetpub\wwwroot\OMPSitecore\Website\SubLayouts\Main\Training Registration.ascx.cs:41
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +52
   System.Web.UI.Control.OnLoad(EventArgs e) +97
   System.Web.UI.Control.LoadRecursive() +61
   System.Web.UI.Control.LoadRecursive() +134
   System.Web.UI.Control.LoadRecursive() +134
   System.Web.UI.Control.LoadRecursive() +134
   System.Web.UI.Control.LoadRecursive() +134
   System.Web.UI.Control.LoadRecursive() +134
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +693


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4676.0