Item script

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class itemScript : MonoBehaviour {

    public GameObject inventorySlot;
    public GameObject player;
    public laikaController controller;
    [SerializeField] private Text interactingText;
    public bool thereIsAnItem = false;
    public bool isActive = false;

    void Update() {

        Vector3 distance = transform.position - player.transform.position;


        if (thereIsAnItem) {
            inventorySlot.SetActive(true);
        }
        if (controller.canInteract == false) {
            interactingText.text = ("");
        }

        if (controller.canInteract == true) {
            if (isActive == false) {
                interactingText.text = ("Press E to pick up this item.");
                if (Input.GetKeyDown(KeyCode.E)) {
                    inventorySlot.SetActive(true);
                    thereIsAnItem = true;
                    controller.canInteract = false;
                    interactingText.text = ("");
                    isActive = true;
                }
            } else if (isActive == true) {
                interactingText.text = ("You already own this item.");
            }
        }
    }
}