[HELP]Problem for Disable Colliders

Unity Engine
1

Hello to everyone i´m here to ask you how can i disable the colliders in unity i´m making a flappy bir game improved because i´m learning and is the first game that i´m making what i want to do is if the shield is activated disable the colliders for some time but i can´t disable it

Player Script:

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using UnityEngine.Advertisements;

public class Jump : MonoBehaviour
{
    // The force which is added when the player jumps
    // This can be changed in the Inspector window
    public Vector2 jumpForce = new Vector2(0, 300);
    private Rigidbody2D rigid;
    public GameObject spawn;
    public Image TapIzq;
    public Image TapDer;
    public Image ManoClick;
    public CanvasRenderer table;
    public Image GetReady;
    public GameObject avion;
    public Image GameOver;
    private PointsScore Puntuacion;
    public Transform HighScoreText;
    private Invencible invencible;


    void Start() {
        rigid = GetComponent<Rigidbody2D>();
        Advertisement.Initialize ("62729");
        if (Random.value >= 0.9 && Advertisement.IsReady ()) {
            Advertisement.Show();
        }
    }

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

        // Jump
        if (Input.GetKeyUp("space") || Input.GetMouseButtonDown(0))
        {
            rigid.velocity = Vector2.zero;
            rigid.AddForce(jumpForce);
        }

        if (Input.GetKeyDown(KeyCode.Space) || Input.GetMouseButtonDown(0) && Application.isPlaying)
        {
            TapDer.enabled = false;
            TapIzq.enabled = false;
            ManoClick.enabled = false;
            GetReady.enabled = false;
            table.gameObject.SetActive(false);
            Time.timeScale = 1f;

        }

        // Die by being off screen
        Vector2 screenPosition = Camera.main.WorldToScreenPoint(transform.position);
        if (screenPosition.y > Screen.height || screenPosition.y < 0)
        {
            Die();
        }
    }

    // Die by collision
    public void OnCollisionEnter2D(Collision2D other)
    {
        Die ();
    }

    public void Die()
    {
        if (PlayerPrefs.HasKey ("highscore")) {
            if (PlayerPrefs.GetInt ("highscore") < GetComponent<PointsScore> ().score) {
                PlayerPrefs.SetInt ("highscore", GetComponent<PointsScore> ().score);
                PlayerPrefs.Save();
            }
        } else {
            PlayerPrefs.SetInt("highscore", GetComponent<PointsScore>().score);
        }
        Application.LoadLevel(0);
    }
}

Columns Script:

using UnityEngine;
using System.Collections;

public class Obstacle : MonoBehaviour
{
    public Vector2 velocity = new Vector2(-8, 0);
    public float range = 10;
   
    // Use this for initialization
    void Start()
    {
        GetComponent<Rigidbody2D>().velocity = velocity;
        transform.position = new Vector3(transform.position.x, transform.position.y - range * Random.value + 1, transform.position.z);

    }
}

Thanks for try to help me
PD Sorry for my bad english i´m a spanish person:)

2

Player Script:
add a
bool shieldActive = false;

and than

public void OnCollisionEnter2D(Collision2D other)
    {
        if( !shieldActive) {
           Die ();
        }
    }