tutorial help

I am following this tutorial but everytime I press space (my attack button) it returns that it hit my attack box and only works when the attack box is on my hitbox layermask

my code:

public class playerController : MonoBehaviour {
[SerializeField]
float movespd=4f;
Vector3 forward, right;
public Collider[] hitBox;
// Use this for initialization
void Start () {
forward = Camera.main.transform.forward;
forward.y = 0;
forward = Vector3.Normalize(forward);
//changes where the vector is facing
right = Quaternion.Euler(new Vector3(0, 90, 0)) * forward;
}

// Update is called once per frame
void Update () {
if (Input.GetKeyDown(KeyCode.Space))
{
WeaponAttack(hitBox[0]);
}
if (Input.anyKey) {
Move();
}


}
void Move()
{
Vector3 direction = new Vector3(Input.GetAxis("horizontal key"),0f,Input.GetAxis("vertical key"));
Vector3 rightMovement = right * movespd * Time.deltaTime*Input.GetAxis("horizontal key");
Vector3 upMovement = forward * movespd * Time.deltaTime * Input.GetAxis("vertical key");
Vector3 heading = Vector3.Normalize(rightMovement+upMovement);
transform.forward = heading;
transform.position += rightMovement;
transform.position += upMovement;
}
void WeaponAttack(Collider col) {
Collider[] cols = Physics.OverlapBox(col.bounds.center, col.bounds.extents, col.transform.rotation, LayerMask.GetMask("hitbox"));
foreach (Collider c in cols)
Debug.Log(c.name);
}
}

thanks in advance