Share screen and text on social media

Hi I have this code that works on one of my game but on the other game the picture is not being taken but the text is there. when i try to send it on for example watsapp then error occours saying "sending failed try again later" can you tell me what could be causing this?

 public void shareScreen ()
     {
         Texture2D MyImage = new Texture2D (Screen.width, Screen.height, TextureFormat.RGB24, true);
         MyImage.ReadPixels (new Rect (0f, 0f, Screen.width, Screen.height), 0, 0);
         MyImage.Apply ();
         byte[] bytes = MyImage.EncodeToPNG ();
         string path = Application.persistentDataPath + "/MyImage.png";
         File.WriteAllBytes (path, bytes);
 
         AndroidJavaClass intentClass = new AndroidJavaClass("android.content.Intent");
         AndroidJavaObject intentObject = new AndroidJavaObject("android.content.Intent");
 
         intentObject.Call<AndroidJavaObject>("setAction", intentClass.GetStatic<string>("ACTION_SEND"));
 
         AndroidJavaClass uriClass = new AndroidJavaClass("android.net.Uri");
         AndroidJavaObject uriObject = uriClass.CallStatic<AndroidJavaObject>("parse","file://" + path);
 
         intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_STREAM"), uriObject);
         intentObject.Call<AndroidJavaObject> ("setType", "text/plain");
         intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TITLE"),"Color Shoot");
         intentObject.Call<AndroidJavaObject>("putExtra", intentClass.GetStatic<string>("EXTRA_TEXT"), "" + "My Score " + gc.score);
         intentObject.Call<AndroidJavaObject>("setType", "image/jpeg");
 
         AndroidJavaClass unity = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
         AndroidJavaObject currentActivity = unity.GetStatic<AndroidJavaObject>("currentActivity");
 
         currentActivity.Call("startActivity", intentObject);
     }