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; 
    }
}

I was expecting an answer showing how dumb I am at times, and sure enough: The script I was trying to access was on the parent of Coffin Lid, not on the object, and that is where the problem came from.