my objects is spawning on the wall

Im trying to spawn candles on the ground, but they will only spawn on the wall. this is my code :

 Ray ray;
 public GameObject candle;
 private Vector3 spawnPoint;
 public int torches = 15;

 public float spawnDistance = 3.0f;

 void Start()
 {

 }

 void Update()
 {

     int x = Screen.width / 2;
     int y = Screen.height / 2;

     ray = Camera.main.ScreenPointToRay(new Vector3(x, y));
     {
         if (Input.GetKeyDown(KeyCode.E))
         {
             RaycastHit hit;
             if (Physics.Raycast(this.transform.position, transform.forward, out hit, spawnDistance))
             {
                 Debug.DrawLine(ray.origin, hit.point, Color.blue, 1);

                 if (hit.collider.tag != "Torch" && torches > 0)
                 {
                     Debug.Log("hit collider");
                     Instantiate(candle, hit.point, Quaternion.identity);
                     torches -= 1;
                 }
             }

         }

     }

 }

i already tried to change the spawnDistance, i do not want them to spawn on my walls, i want them to only spawn on the ground, anyone who can help me?

Thanks in advance!