MySQL + ASP .NET

using System;
using System.Data;
using System.Web.Mvc;
using System.Web.Routing;
using System.Xml;
using Legend3_Shared.MySQL;
using MySql.Data.MySqlClient;

namespace VoxelPro_WebSite
{
    public class MvcApplication : System.Web.HttpApplication
    {
        public static MySqlConnection Connection = new MySqlConnection("YOUR_CONNECTION_STRING");
        protected void Application_Start()
        {
        if (Connection.State == ConnectionState.Closed)
                Connection.Open();
            Connection.Query("select Value from counters where name='Visits'", r =>
            {
                var result = r["Value"];
                Application["Visits"] = (long) result;
                return false;
            });
            AreaRegistration.RegisterAllAreas();
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            Connection.Close();
        }

        private void Session_Start(object sender, EventArgs e)
        {
            if (Connection.State == ConnectionState.Closed)
                Connection.Open();
            Connection.NonQuery($"update counters set Value={visits+1} where name='Vists'");
            Connection.Close();
        }

        private void Session_End(object sender, EventArgs e)
        {
        }
    }
}