my php command lost when session_start and destry

Question

my webserver consist of C# server program, html and php

is running well

but when i send reset configurations command to C# program and logout to pages

then that commands is lost

this is my code

Server <-> JS <-> Html

C# Server Program(Received Part,Websocket Server)

using WebSocketSharp;

using WebSocketSharp.Server;

C# Program.cs

static WebSocketServer webSocketServer;

public static class Program
{
  webSocketServer = new WebSocketServer(7777);
  webSocketServer.AddWebSocketService<Chat>("/Chat");
  webSocketServer.Start();
}

public static void CommandConverter(Model_CMD model_CMD)
{
   switch(MdeolCMD.cmd)
   {
      case "Config":
        switch (model_CMD.Parameter)
        {
           case "RESET":
           ConfingRESET();
           break;
        }
        break;
   }
}

C# Chat.cs

using Newtonsoft.Json;
public class Chat : WebSocketBehavior
{
 protected override void OnMessage(MessageEventArgs e)
 {
   var text = e.Data;
   Model_CMD model_CMD = JsonConvert.DeserializeObject<Model_CMD>(text);
   Program.CommandConverter(model_CMD, ID, true);        
 }
}

C# Model_CMD.cs

public class Model_CMD
{
  public Model_CMD(string CMD, string Parameter, string Value = "", string Value2 = "", string Return = "")
  {
     this.CMD = CMD;
     this.Parameter = Parameter;
     this.Value = Value;
     this.Value2 = Value2;
     this.Return = Return;
  }


   public string CMD { get; set; }
   public string Parameter { get; set; }
   public string Value { get; set; }
   public string Value2 { get; set; }
   public string Return { get; set; }
}

JS Part(Send Command)

function Configuration_Reset()
{
  var s_data = {};
  s_data["id"] = "<?=$_SESSION['user_id']?>";
  s_data["pw"] = "<?=$_SESSION['user_pw']?>";
        
        SendCMD("RESET","Config",s_data["id"].toString(),s_data["pw"].toString());
        window.location.href = "./logout.php";
    
}

function SendCMD(CMD,  Parameter,  Value1,  Value2)
{
  var s_data = {};
  s_data["CMD"] = CMD;
  s_data["Parameter"] = Parameter;
  s_data["Value"] = Value1;
  s_data["Value2"] = Value2;
  s_data["Return"] = "";

  socket.send((JSON.stringify(s_data));
}

logout.php

<?php
session_start();
session_destroy();
?>

<meta http-equiv='refresh' content='0;url=login.php'>

can i have some try?

-- ADDED

html js Command to C# Program

then transmitted well in C# when without logout.php after command (if in js part without window.location.href = "./logout.php"; then C# server can catch command)

but send command and call logout.php then anything catch on C# Program

so how i can catch command in c# when command send and logout

-- ADDED

C# Minimal code add to run C# server