Button disabled when game starts

I'm trying press a button every time I want to start a minigame. In the minigame, it spawns random prefab fruits (up to 10) every second. Here is the code:

Code (CSharp):

1. public float tiempoRespawn = 1.0f;
2. private Vector2 limitesPantalla;
3. public Button botonJugar;
4. void Start()
5. {
6.      limitesPantalla = Camera.main.ScreenToWorldPoint(new Vector3(Screen.width, Screen.height, Camera.main.transform.position.z));
7.      botonJugar.onClick.AddListener(ButtonJugarClicked);
8. }
9. void ButtonJugarClicked()
10. {
11.      StartCoroutine(frutas());
12. }
13. private void spawn(){
14.      GameObject f = Instantiate(frutaPrefab[Random.Range(0, frutaPrefab.Length)]) as GameObject;
15.      f.transform.position = new Vector2(-limitesPantalla.x * -2, Random.Range(-limitesPantalla.y, limitesPantalla.y));
16. }
17. IEnumerator frutas()
18. {
19.      for (int i = 0; i <= 10; i++)
20.      {
21.          yield return new WaitForSeconds(tiempoRespawn);
22.          spawn();
23.      }
24. }

I dont' know why, when I start the game, the button is disabled and I can't press it. I have tried to write botonJugar.interactable = true, but that doesn't solve the problem.

 

Yes, I have tried it in a new project and scene and the button is enabled, I don't know why it isn't working in my project.

 

Never mind, it was my fault. I didn't remember that I was using the button for another thing which I forgot to change. Thank you for your time.

 

Yes, but the solution was that I was disabling that button with other script, I have only deleted that and now it works.