OnPointerClick not getting public variables from script

For some reason my OnPointerClick method can not 'see' the variables
I was trying this script, but it didn't work
then I tried passing a string and viewing it with Debug.Log(...), but that didn't show the string, but empty lines (the variables where set in the inspector by the way)
Does anybody know why I could not get my variable values?

my code

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.Events;
public class Component_ClickCraft : MonoBehaviour, IPointerClickHandler
{
    public UnityEvent clicked;
    public void OnPointerClick(PointerEventData eventData){
        clicked.Invoke();
    }
}