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:

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:


[NullReferenceException: Object reference not set to an instance of an object.]
   cyberretailer.Classes.AppCommon.IsUserInRole(String roleName) in C:\Users\ivan_\Source\Workspaces\RECHARGEAPI\FreeOnlineRechargeApi\cyberretailer\Classes\AppCommon.cs:650
   ASP.masterminton_master.__Renderform1(HtmlTextWriter __w, Control parameterContainer) +26136
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +116
   System.Web.UI.HtmlControls.HtmlForm.RenderChildren(HtmlTextWriter writer) +207
   System.Web.UI.HtmlControls.HtmlContainerControl.Render(HtmlTextWriter writer) +46
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +131
   System.Web.UI.HtmlControls.HtmlForm.RenderControl(HtmlTextWriter writer) +68
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +288
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +131
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +288
   System.Web.UI.Page.Render(HtmlTextWriter writer) +38
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +131
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +9489


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4330.0