This doormanager script from unity 3x Game Development Essentials is supposed to raycast the door open but it doesn't. Why not? Code now attached.

I have included two scripts I typed out from unity 3x game development essentials, that are supposed to demonstrate raycasting a door open only when the player object is facing it. Instead it seems to loop the sound of the door opening and closing very quickly, till it sounds like a radio with bad transmission, and the only animation you get to see is of the door closing when you stop facing it. Would someone please point out the script error(s) in the attachment - I want the door to open and close properly. Please note I have reimported all the assets, the console is error free, and all code is in javascript.

Thank you in advance

Thank you for pointing out attachments are not there. So following is the code of the door that is supposed to open and close the door once when triggered by a raycast modifier in another javascript:

 private var doorIsOpen : boolean = false;
 private var doorTimer : float = 0.0f;
 var doorOpenTime : float = 3.0f;
 var doorOpenSound : AudioClip;
 var doorShutSound : AudioClip;
 
 function Start() {
     doorTimer = 0.0f;
 }
 
 function Update() {
     if(doorIsOpen) {
         doorTimer += Time.deltaTime;
         
         if(doorTimer > doorOpenTime) {
             Door(doorShutSound, false, "doorshut");
             doorTimer = 0.0f;
         }
     }
 }
 
 function DoorCheck() {
     if(!doorIsOpen) {
         Door(doorOpenSound, true, "dooropen");
     }
 }
 
 function Door(aClip : AudioClip, openCheck : boolean, animName : String) {
     audio.PlayOneShot(aClip);
     doorIsOpen = openCheck;
     transform.parent.gameObject.animation.Play(animName);
 }

And here is the raycast javascript that is supposed to trigger it once:

 private var currentDoor : GameObject;
 
 function Update() {
     var hit : RaycastHit;
     
     if(Physics.Raycast (transform.position, transform.forward, hit, 3)) {
         if(hit.collider.gameObject.tag=="playerDoor"){
             currentDoor = hit.collider.gameObject;
             currentDoor.SendMessage("DoorCheck");
         }    
     }
 }