Setting menu music

I'm building a game where, at the end of each level, a results screen is shown, with the game in the background. Once the screen is accessed (you fly into a trigger box), I want a victory tune to play. To do this, I have written the code to be as such:

 using UnityEngine;
 using System.Collections;
 
 public class NewLevel : MonoBehaviour {
     public Material otherSkybox;
     private bool newlevel= false;
     public GameObject camera;
     public AudioClip victory;
     void Start() {
     newlevel = false;
     }
     void OnTriggerEnter(Collider other)
     {
                 if (other.tag == "Player"){
                         newlevel = true;
         }
         if (newlevel== true){
             RenderSettings.skybox = otherSkybox;
             camera.audio.Play(victory);
         transform.localPosition = new Vector3(0, 0, 0);
         print(transform.localPosition.y);
     }
 }
 }

The problem I have is however that I get the following compile error: The best overload match for "unityengine.audiosource.play(ulong)" has some invalid arguments. And that's strange, since I've basicaly copied the example in the unity documentation pages.