❔ Can't create Singleton terminal for dll output debugging

cs 
using System;
using System.Diagnostics;
using System.IO;

namespace Paradigm
{
    public class DebugConsole
    {
        private static DebugConsole instance = null;
        private static readonly object lockObject = new object();
        ProcessStartInfo psi;
        StreamWriter sw;
        StreamReader sr;
        private DebugConsole()
        {
            psi = new ProcessStartInfo("cmd.exe")
            {
                RedirectStandardError = true,
                RedirectStandardInput = true,
                RedirectStandardOutput = true,
                UseShellExecute = false
            };
            Process p = Process.Start(psi);

            sw = p.StandardInput;
            sr = p.StandardOutput;

        }

        public static DebugConsole Instance
        {
            get
            {
                lock (lockObject)
                {