why does it say "ArgumentException: Getting control 7's position in a group with only 7 controls when doing mouseDown Aborting"

Question

I am trying to build a input system from the ground up and it gave me this error. I've gone over the tutorial many time but still can't find the error.

Here's my code :

public class InputManager : MonoBehaviour
{
    private PlayerInput playerInput;
    private PlayerInput.OnFootActions onFoot;

    
    void Awake()
    {
        playerInput = new PlayerInput();
        onFoot = playerInput.OnFoot;
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    private void OnEnable()
    {
        onFoot.Enable();
    }

    private void OnDisable()
    {
        onFoot.Disable();
    }
}