Help with audio 2d

Hello i’m making a 2d game but i have some problems with sound,everytime i try to play a sound it says “Can not play a disabled audio source”.What does that mean?
Here is my code

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


}

void OnCollisionEnter2D(Collision2D col){

public AudioClip des;

	if(col.gameObject.tag == "ball"){
		Destroy(gameObject);
		GetComponent<AudioSource>().clip = des;
		GetComponent<AudioSource>().Play();

	}

 





}

}

It’s funny. You are trying to get the AudioSource from a gameobject which you destroyed before.
Why do you want to destroy this gameobject?

Maybe you want to destory col.gameobject.