The localhost page isn’t working. localhost redirected you too many times
<p>I got a problem when debugging my MVC program and I want to acces to my db called "UserActivity".
on the browser, it saying that "The localhost page isn’t working</p>

<p>localhost redirected you too many times."</p>

<p>but without showing the specific error location.</p>

<p>here is my UserActivtyController, GET /UserActivity/Index code:</p>

<pre><code>public class UserActivityController : BaseController
{
    //GET /UserActivity/Index
    public ActionResult Index(string returnUrl, int page = 1, string sort = "Id", string sortDir = "ASC", string filter = null)
    {
        String query = @"
            SELECT Id
            ,CreatedBy
            ,CreatedOn
            ,ModifiedBy
            ,ModifiedOn
            ,ContactId
            ,EntityName
            ,EntityId
            ,ActivityType
            ,ActivityStatus
            ,DueDate
            ,ActualEndDate
            ,MasqueradeOn
            ,MasqueradeBy 
        FROM UserActivity 
        -- ORDER BY CreatedOn DESC
        -- OFFSET (@PageNumber -1) * 30 ROWS
        -- FETCH NEXT 30 ROWS ONLY
            ";

        //string countQuery = @""

        List&lt;UserActivityModels&gt; userActivity = null;

        using (IDbConnection db = new MySqlConnection(ConfigurationManager.ConnectionStrings["CRMPORTALSQLCONN"].ConnectionString))
        {
            userActivity = (List&lt;UserActivityModels&gt;)db.Query&lt;UserActivityModels&gt;(query, new
            {
                @PageNumber = page,

            });

            /*ViewData["TotalCount"] = (int)db.ExecuteScalar(countQuery, new
            {
                @PageNumber = page,
                @Id = string.IsNullOrEmpty(filter) ? null : filter
            });
            */

            ViewData["PageSize"] = 30;
            ViewData["Filter"] = filter;
        }

        if (userActivity != null)
        {
            return RedirectToAction(returnUrl);
        }

        return View(userActivity);
    }
}
</code></pre>

<p>Really appreciate if there anyone who know something about this problem. Thanks</p>