What is wrong with this script? Error connecting with another objects scripts/functions

I have a controller script that figures out what a player is touching on the screen. Then I have a script that moves the lid of a coffin if the player touched it. However, whenever I try any code -- the function intended or even just updating a boolean variable -- there is an error in XCode that breaks the app. For the life of me I can't figure out what is wrong.

I can confirm that without the line that "speaks" to the clickable.js script (Attached to the coffin lid) no errors happen. I can also confirm that the function on clickable.js works perfectly (just tried it with an automated movement after a 5 second delay, worked fine).

Here is my code, any assistance would be wonderful:

controller.js

 function Update () { 
 
 for (var i = 0; i < Input.touchCount; ++i) 
     {
         if (Input.GetTouch(i).phase == TouchPhase.Began)
         {
                 var hitWorld : RaycastHit;
                 var screenPosWorld = Input.GetTouch(i).position;
                 var worldPosWorld = playerCamera.ScreenToWorldPoint(screenPosWorld);
                 var rayWorld : Ray = playerCamera.ScreenPointToRay (Input.GetTouch(i).position);
                 if (Physics.Raycast (rayWorld, hitWorld, 100)) 
                 {
                     var playerClickDistance = Vector3.Distance(hitWorld.collider.gameObject.transform.position, playerObject.transform.position);
                     if (hitWorld.collider.gameObject.tag == "Clickable")
                     {
                         //I BELIEVE THIS LINE BELOW IS THE PROBLEM
                         hitWorld.collider.gameObject.GetComponent(clickable).GotClicked(playerClickDistance);
                     }
                 }
         }
     }
 }

clickable.js

 function GotClicked(playerClickDistance : float)
 {
     if (objectType == "Coffin 1" && playerClickDistance <= playerDistance) { ClickCoffin1(); }
 }
 
 function ClickCoffin1 () {
     var i = 0.0;
     var rate = 1.0 / animationTime;
     while (i < 1.0) {
         i += Time.deltaTime * rate;
         coffinLid.transform.position = Vector3.Lerp(startPosition, endPosition, i);
         coffinLid.transform.eulerAngles = Vector3.Lerp(startRotation, endRotation, i);
         yield; 
     }
 }