Getting NullReferenceException? info inside

I made a GameObject array to keep track of the current enemies for easy referencing, however I cannot get it to work right. It seems like everything is in order, and I can compile and play, but I get the NullReferenceException error when I play.

I am trying to create a script for platforms that the characters can pass through the bottom of.

The three errors I get are

NullReferenceException: Object reference not set to an instance of an object EnemySpawn.Start () (at Assets/Custom Assets/Scripts/Enemy/EnemySpawn.js:18)

NullReferenceException: Object reference not set to an instance of an object Passable Platform.Update () (at Assets/Custom Assets/Scripts/Stage/Passable Platform.js:18)

NullReferenceException: Object reference not set to an instance of an object EnemySpawn.Start () (at Assets/Custom Assets/Scripts/Enemy/EnemySpawn.js:18)

And the Scripts are

------------------EnemySpawn.js--------------------

 var spawn : Transform;
 var spawnAtStart : boolean = false;
 var self : GameObject;
 var spawnedBool : boolean = false;
 var myClone : GameObject;
 var myCloneHealthScript : EnemyHealth;
 var cloneBool : boolean = true;
 var myCloneFollowScript : EnemyFollow;
 var player : GameObject;
 var StatisticsScript : Statistics;
 
 function Start(){
     
     player = GameObject.FindWithTag("Player");
     StatisticsScript = player.GetComponent(Statistics);
     
     for (var i = 0; i <= StatisticsScript.enemyCount.Length; i++)
     {
 
         if(StatisticsScript.enemyCount != GameObject) {
 
             StatisticsScript.enemyCount[i] = gameObject;
 
               return;
               
         }
 
     }
 
 }
 
 function Update () {
 
     if(spawnAtStart == true){
         spawnAtStart = false;
         spawnedBool = true;
         Spawn();
         }else{
             if(spawnedBool == false){
                 spawnedBool = true;            
                 Spawn();                        
             }
         }
 }
 
 
 
 
 function Spawn() {
     spawnedBool = true;
     
     myClone = Instantiate(self, spawn.position, Quaternion.identity);
     
     myClone.name = "Clone";
     
     myCloneHealthScript = myClone.GetComponent(EnemyHealth);
     
     myCloneHealthScript.cloneCheck = cloneBool;
     
     myCloneFollowScript = myClone.GetComponent(EnemyFollow);
     
     myCloneFollowScript.cloneCheck = cloneBool;
 }

--------------------------Passable Platform.js-------------------------------

 var StatisticsScript : Statistics;
 
 //***********************************************************************************************
 function Update () {
 
     player = GameObject.FindWithTag("Player");
     StatisticsScript = player.GetComponent(Statistics);
     
     /* if the player is made up of more than one collider, you'd
        need to iterate over the colliders and use playerBounds.Encapsulate()*/
        
     for(var i = 0; i <= StatisticsScript.enemyCount.Length; i++)
     {
     
         enemyBounds = StatisticsScript.enemyCount[i].collider.bounds;
         enemyCheck(enemyBounds, StatisticsScript.enemyCount[i]);
         
     }
        
     playerBounds = player.collider.bounds;
     playerCheck();
     
 
 }
 
 //***********************************************************************************************
 function playerCheck(){
 
     //check bottom of player to see if it is above the platform
     if(playerBounds.min.y >= collider.bounds.max.y)
     {
         Debug.Log("player is above platform");
         //make the platform solid
         Physics.IgnoreLayerCollision(8, 10, false);
         
     }else{
         Debug.Log("player is below platform");
         //turn off platform collision
         Physics.IgnoreLayerCollision(8, 10, true);
         
     }
 
 }
 
 //***********************************************************************************************
 function enemyCheck(enemyBounds : Bounds, enemy : GameObject){
 
     if(enemyBounds.min.y >= collider.bounds.max.y)
     {
     
         Physics.IgnoreCollision(collider, enemy.collider, false);
         
     }else{
     
         Physics.IgnoreCollision(collider, enemy.collider,true);
         
     }
 
 }

----------The relevant script from Statistics.js----------

 static var enemyCount : GameObject[];