hello sir

my class file code is

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

/// <summary>
/// Summary description for URLRewriter
/// </summary>
public class URLRewriter : IHttpModule
{
    //public URLRewriter()
    //{
    //    //
    //    // TODO: Add constructor logic here
    //    //
    //}
    #region IHttpModule Members

    /// <summary>
    /// Dispose method for the class
    /// If you have any unmanaged resources to be disposed
    /// free them or release them in this method
    /// </summary>
    public void Dispose()
    {
        //not implementing this method
        //for this example
    }

    /// <summary>
    /// Initialization of the http application instance
    /// </summary>
    /// <param name="context"></param>
    public void Init(HttpApplication context)
    {
        context.BeginRequest += new EventHandler(context_BeginRequest);
    }
    /// <summary>
    /// Event handler of instance begin request
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    void context_BeginRequest(object sender, EventArgs e)
    {
        //Create an instance of the application that has raised the event
        HttpApplication httpApplication = sender as HttpApplication;

        //Safety check for the variable httpApplication if it is not null
        if (httpApplication != null)
        {
            //get the request path - request path is    something you get in
            //the url
            string requestPath = httpApplication.Context.Request.Path;

            //variable for translation path
            string translationPath = "";

            //if the request path is /urlrewritetestingapp/laptops/dell/
            //it means the site is for DLL
            //else if "/urlrewritetestingapp/laptops/hp/"
            //it means the site is for HP
            //else it is the default path
            switch (requestPath.ToLower())
            {
                case "/government-exams/Bank%20Jobs/":
                    translationPath = "/Default.aspx?JobHeaderMenuName=Bank%20Jobs";
                    break;
                case "/government-exams/SSC/":
                    translationPath = "/Default.aspx?JobHeaderMenuName=SSC";
                    break;
                case "/government-exams/Railways/":
                    translationPath = "/Default.aspx?JobHeaderMenuName=Railways";
                    break;
                default:
                    translationPath = "/government-exams/default.aspx";
                    break;
            }

            //use server transfer to transfer the request to the actual translated path
            httpApplication.Context.Server.Transfer(translationPath);
        }
    }

    #endregion
}

my aspx page is

<ul class="nav navbar-nav custom_nav">
                                <li class="active"><a href="http://latestsarkarijob.com">Home</a></li>
                                <li><a href="http://latestsarkarijob.com/government-exams/Bank%20Jobs/">Bank Jobs</a></li>
                                <li><a href="http://localhost:1090/government-exams/SSC/">SSC</a></li>
                                <li><a href="http://localhost:1090/government-exams/Railways/">Railways</a></li>
                                <li><a href="Default.aspx?JobHeaderMenuName=Freshers%20Jobs">UPSC</a></li>
                                <li><a href="Default.aspx?JobHeaderMenuName=Teaching Jobs">Teaching Jobs</a></li>
                                <li><a href="Default.aspx?JobHeaderMenuName=State PCS">State PCS</a></li>
                                <li><a href="Default.aspx?JobHeaderMenuName=Police">Police</a></li>
                                <li></li>
                            </ul>

but it is not work properly

this error is shown on web page