Please! I need someone help with a game

Question

I got this Error everytime the scene is reseted. I have no clue where mistake is made. Please help!
TypeError: Error #1010: A term is undefined and has no properties.
    at golfer_fla::MainTimeline/resetScene()
    at golfer_fla::MainTimeline/golfer_fla::frame1()
TypeError: Error #1010: A term is undefined and has no properties.
    at golfer_fla::MainTimeline/resetScene()
    at golfer_fla::MainTimeline/countDown()
    at flash.utils::Timer/flash.utils:Timer::_timerDispatch()
    at flash.utils::Timer/flash.utils:Timer::tick()
If that helps I could send my game by mail so someone could check the error which constantly pop out when the golfer hit the ball, ball stops and the scene resets.
Here is the code:
//Variables
var myHead = new head();
var myArms = new arms();
var myBody = new body();
var myStick = new stick();
var myGround = new ground();
var myFlag = new flag();
var myCapsel = new capsel();
var grassMask:Number;
var speedUp:int = 2;
var speedDown:int = speedUp * 8;
var checker:int;
var minPower:int;
var maxPower:int = 110;
var strength:Number;
var capselPower:Number;
var distance:Number;
var target:int;
var tryShot:int = 0;
var myTimer = new Timer(2000, 1);
//EventListeners
stage.addEventListener(KeyboardEvent.KEY_DOWN, onDown);
stage.addEventListener(KeyboardEvent.KEY_UP, onUp);
stage.addEventListener(Event.ENTER_FRAME, hit);
myTimer.addEventListener(TimerEvent.TIMER, countDown);
//Functions
function resetScene():void {   
    addChild(myBody);
    addChild(myArms);
    addChild(myHead);
    addChild(myStick);
    addChild(myGround);
    addChild(myFlag);
    addChild(myCapsel);
    grassMask = (320 + Math.random()*260);
    myBody.x = 70;
    myBody.y = 296;
    myArms.x = 68;
    myArms.y = 276;
    myArms.rotation = 0;
    myHead.x = 70;
    myHead.y = 215;   
    myStick.x = 68;
    myStick.y = 276;   
    myStick.rotation = 0;
    myCapsel.x = 90;
    myCapsel.y = 331;
    myGround.x = 0;
    myGround.y = 375;
    myGround.grassMask.x = grassMask - 610;
    myFlag.x = grassMask;
    myFlag.y = 375;
    checker = 0;
    minPower = 0;
    target = 0;
    tryShot ++;
    myCapsel.capselFall.gotoAndStop(1);
    myMessage.text = "Press any key!";
resetScene();
function invisibleCapsels():void {   
    a1.visible = false;
    a2.visible = false;
    a3.visible = false;
    a4.visible = false;
    a5.visible = false;
    a6.visible = false;
    a1.gotoAndStop(1);
    a2.gotoAndStop(1);
    a3.gotoAndStop(1);
    a4.gotoAndStop(1);
    a5.gotoAndStop(1);
    a6.gotoAndStop(1);
invisibleCapsels();
function onDown(e:KeyboardEvent):void {
    checker = 1;
    minPower = -20;
function onUp(e:KeyboardEvent):void {
    checker = 0;
    capselPower = (myCapsel.x + myStick.rotation) * 3.2;
function hit(e:Event):void {
    if(tryShot < 7) {
        if((checker == 1) && (myStick.rotation < maxPower)) {
            myStick.rotation += speedUp;
            myArms.rotation += speedUp;
            } else {
                if(myStick.rotation > minPower) {
                    myStick.rotation -= speedDown;
                    myArms.rotation -= speedDown;
                if(myStick.hitTestObject(myCapsel)) {
                    stage.addEventListener(Event.ENTER_FRAME, shot);
            } else {
                myMessage.text = "Game Over\nClick to play again";
                stage.addEventListener(MouseEvent.MOUSE_DOWN, playAgain);
function playAgain(e:MouseEvent):void {
    resetScene();
    invisibleCapsels();
    tryShot = 1;
    stage.removeEventListener(MouseEvent.MOUSE_DOWN, playAgain);
function shot(e:Event):void {
    strength = (capselPower - myCapsel.x);
    distance = grassMask - myCapsel.x;
    if((Math.round(distance) <= 10) && (Math.round(distance) >= 3) && (strength <= 65)) {
        if(target == 0) {
            myCapsel.capselFall.play();
            myCapsel.rotation = 0;
            target = 1;
            this["a" + tryShot].visible = true;
            myMessage.text = "Cooool!";
            myTimer.start();
        } else {
            if(strength > 5) {
                myCapsel.x += strength / 30;
                myCapsel.rotation += strength / 4;
                } else {
                    this["a" + tryShot].visible = true;
                    this["a" + tryShot].gotoAndStop(2);
                    myMessage.text = "Bad Luck!";
                    myTimer.start();
function countDown(e:TimerEvent):void {
    resetScene();
    stage.removeEventListener(Event.ENTER_FRAME, shot);

Answer 1

Try adding the following two lines before line 59:
trace(myCapsel);
trace(myCapsel.capselFall);
If one of them traces undefined, it should isolate which object is the problem.  If you describe what is involved with that object.child, then it may help generate an idea of what might be wrong.