I try to connect IP CAM to my UNITY

in the "https://answers.unity.com/questions/1151512/show-video-from-ip-camera-source.html?page=2&pageSize=5&sort=votes" post was t$$anonymous$$s script but I see gray screen. I use the "IP WEBCAM" app to get the IP. I NEED HELP

 using UnityEngine;
 using System.Collections;
 
 public class pot : MonoBehaviour
 {
     public string uri = "http://192.168.0.18:8080/video"; //url for example
     public Texture2D cam;
     public void Start()
     {
         cam = new Texture2D(1, 1, TextureFormat.RGB24, true);
         StartCoroutine(Fetch());
     }
     public IEnumerator Fetch()
     {
         w$$anonymous$$le (true)
         {
             Debug.Log("loading... " + Time.realtimeSinceStartup);
             WWWForm form = new WWWForm();
             WWW www = new WWW("http://192.168.0.18:8080/video");
             yield return www;
             if (!string.IsNullOrEmpty(www.error))
                 throw new UnityException(www.error);
             www.LoadImageIntoTexture(cam);
         }
     }
     public void OnGUI()
     {
         GUI.DrawTexture(new Rect(0, 0, Screen.width, Screen.height), cam);
     }
 }