Local Camera to show QRcode with ZXing not turning on in Unity

I wrote a Script with ZXing to call the local Camera on my PC, I attach the script to my camera in unity and the camera showed blocking. Please Help

The script is shown:

 using System.Threading;
 
 using UnityEngine;
 
 using ZXing;
 using ZXing.QrCode;
 
 public class BarcodeCam : MonoBehaviour
 {
    // Texture for encoding test
    public Texture2D encoded;
 
    private WebCamTexture camTexture;
    private Thread qrThread;
 
    private Color32[] c;
    private int W, H;
       
    private Rect screenRect;
 
    private bool isQuit;
 
    public string LastResult;
    private bool shouldEncodeNow;
 
    void OnGUI()
    {
       GUI.DrawTexture(screenRect, camTexture, ScaleMode.ScaleToFit);
    }
 
    void OnEnable()
    {
       if (camTexture != null)
       {
          camTexture.Play();
          W = camTexture.width;
          H = camTexture.height;
       }
    }
 
    void OnDisable()
    {
       if (camTexture != null)
       {
          camTexture.Pause();
       }
    }
 
    void OnDestroy()
    {
       qrThread.Abort();
       camTexture.Stop();
    }
 
    // It's better to stop the thread by itself rather than abort it.
    void OnApplicationQuit()
    {
       isQuit = true;
    }
 
    void Start()
    {
       encoded = new Texture2D(256, 256);
       LastResult = "http://www.bing.com";
       shouldEncodeNow = true;
 
       screenRect = new Rect(0, 0, Screen.width, Screen.height);
 
       camTexture = new WebCamTexture();
       camTexture.requestedHeight = Screen.height; // 480;
       camTexture.requestedWidth = Screen.width; //640;
       OnEnable();
 
       qrThread = new Thread(DecodeQR);
       qrThread.Start();
    }
 
    void Update()
    {
       if (c == null)
       {
          c = camTexture.GetPixels32();
       }
 
       // encode the last found
       var textForEncoding = LastResult;
       if (shouldEncodeNow && 
           textForEncoding != null)
       {
          var color32 = Encode(textForEncoding, encoded.width, encoded.height);
          encoded.SetPixels32(color32);
          encoded.Apply();
          shouldEncodeNow = false;
       }
    }
 
    void DecodeQR()
    {
       // create a reader with a custom luminance source
       var barcodeReader = new BarcodeReader {AutoRotate = false, TryHarder = false};
 
       while (true)
       {
          if (isQuit)
             break;
 
          try
          {
             // decode the current frame
             var result = barcodeReader.Decode(c, W, H);
             if (result != null)
             {
                LastResult = result.Text;
                shouldEncodeNow = true;
                print(result.Text);
             }
 
             // Sleep a little bit and set the signal to get the next frame
             Thread.Sleep(200);
             c = null;
          }
          catch
          {
          }
       }
    }
 
    private static Color32[] Encode(string textForEncoding, int width, int height)
    {
       var writer = new BarcodeWriter
       {
          Format = BarcodeFormat.QR_CODE,
          Options = new QrCodeEncodingOptions
          {
             Height = height,
             Width = width
          }
       };
       return writer.Write(textForEncoding);
    }
 }

The Script need the Zxing.unity.dll file, it is attached with the link below, take it if you need to rebuild the situation: https://drive.google.com/drive/folders/1O3PbiMAdW_TLfDMadPQZWlbCVGgLL4oC?usp=sharing