GLTFImage.cs ToTexture2D() ERROR: Cannot connect to destination host When Importing

[BatuhanCandr]

IEnumerator DownloadAvatar()
{
Debug.LogError("Test 1 ");
string[] avatarUrls = new string[]
{
//URLs
};
Debug.LogError("Test 2 ");
for (int i = 0; i < avatarUrls.Length; i++)
{
Debug.LogError("Test 3 ");
using (UnityWebRequest www = UnityWebRequest.Get(avatarUrls[i]))
{
yield return www.SendWebRequest();

            if (www.result == UnityWebRequest.Result.Success)
            {
                string filePath = Application.persistentDataPath + "/" + Path.GetFileName(avatarUrls[i]);

                Debug.LogError("Test 7 ");
                File.WriteAllBytes(filePath, www.downloadHandler.data);
                Debug.LogError("Test 8");

                string extension = Path.GetExtension(filePath).ToLower();
                if (extension == ".bin")
                {
                    // do something with binary data
                    Debug.LogError("Test 11 ");
                }
                Debug.LogError("Test 9 ");
                if (extension == ".jpg")
                {
                    Debug.Log("jpg before");
                    _avatarTex = new Texture2D(2, 2);
                    defaultMat.mainTexture = _avatarTex;
                    _avatarTex.LoadImage(www.downloadHandler.data);
                    Debug.LogError("Test 10 ");
                }

               

                if (extension == ".gltf")
                {
                    GameObject result = Importer.LoadFromFile(filePath);
                    result.transform.GetChild(0).GetComponent<SkinnedMeshRenderer>().material = defaultMat;
                    result.transform.position = Vector3.zero;
                    Debug.LogError("Test 12 ");
                }
            }
            else
            {
                Debug.LogError("Error downloading file: " + www.error);
                Debug.LogError("Test 6 ");
            }
        }
    }
}