enable a canvas on trigger

i have a problem,im planning on making a parking game to release on gamejolt,and i dont know how to make a trigger enable a canvas, i’ve tried everything but nothing worked,when i tried to make a script it gave me an error, it said unexpected symbol end of file,i need someone to make a script that doesent give me an error.

I am asuming that you are making a 2d game.
If you are making a 3d game remove the 2D from the onTrigger and Collider.
Make sure that you have a collider on the gameObject and set it to trigger and a rigidbody.
If this isn’t what you are looking for could you be more clear with your question.
For example when do you want the canvas to be enabled and how, via a button, collision, key press
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class EnableCanvas : MonoBehaviour
    //The canvas you want to enable
    public GameObject canvas;

    //Check if something has entered the collider this script is on
    void OnTriggerEnter2D(Collider2D other)
        //Check if the object has the tag car
        if(other.tag == "car")
            //Activate the canvas

Hi I hope this can help you,`

public GameObject canvasHolder = GameObject.Find(“Canvas”);
private GameObject canvasGameHolder;[

canvasGameHolder = Instantiate(canvasHolder);