gui does not appear after trigger?

Before this script is working but after a day it doesn't work ? why? i try to change the object but no change happen . Someone can help me . Thanks.

var scoretxt:GUIText; var customtxt: GUIStyle; var score:int;

function OnTriggerEnter (other : Collider) {

if(other.gameObject.tag== "p2") { Destroy(other.gameObject);

score +=50; scoretxt.text = score.ToString(); print(score); gameObject.Find("Balisong").GetComponent("GUITexture").enabled = true; } else if(other.gameObject.tag == "c1") {

Destroy(other.gameObject); score +=50; scoretxt.text = score.ToString(); print(score); gameObject.Find("basilcachurch").GetComponent("GUITexture").enabled = true; }

else if(other.gameObject.tag == "c3") {

Destroy(other.gameObject); score +=50; scoretxt.text = score.ToString(); print(score); gameObject.Find("GenrealMalvar").GetComponent("GUITexture").enabled = true; }

else if(other.gameObject.tag == "c2") {

Destroy(other.gameObject); score +=75; scoretxt.text = score.ToString(); print(score); gameObject.Find("kapengbarako").GetComponent("GUITexture").enabled = true; } }