Help with Shop Script C#

So, I'm working on a shop script that pauses the game and opens up a GUI with purchasable items. that part is working, but when I actually buy something, nothing happens. It's kinda coding in a "dirty way" but I don't know anything more elegant. Anyway, here it is:

 using UnityEngine;
 using System.Collections;
 
 public class SlotScript : MonoBehaviour 
 {
     /// <Items Types>
     /// 1: Health Kit
     /// 2: Extra Life
     /// 3: Player Shield
     /// 4: Clones
     /// </Item Types>
     
     public bool itemActive = false;
     public static bool purchasable = true;
     public float MoraleCost = 2;
     public float itemType = 1;
     
     public GameObject sprite;
 
 
 
     void Awake()
     {
 
     }
     
       void OnClick() 
     {
         if(purchasable == true && Morale.secMorale >= MoraleCost)
         {
             Morale.secMorale = Morale.secMorale - MoraleCost;
             Debug.Log("Ello' chaps!");
             itemActive = true;
             gameObject.SetActiveRecursively(false);
         }
     }
     
     void OnHover()
     {
         if(itemType == 1)
         {
                 
         }
     }
     
     void Update()
     {
         if (itemActive)
         {
             purchasable = false;
             Debug.Log("effects are taking place!");
                 
             if(itemType == 1)
             {
 
                 Player_Health.playerHealth += 100;
             }
             
             if(itemType == 2)
             {
                 Player_Health.playerLives = Player_Health.playerLives + 1;
             }
             
             if(itemType == 3)
             {
                 Player_Shield.shieldBought = true;
             }
             
             if(itemType == 4)
             {
                 Morale.secPopulation = Morale.secPopulation + 10;
             }
         }
         
         if(purchasable == false)
         {
 
         }
     }
 }
 

I'm using NGUI btw.