Having trouble with LoadAll

I've been following a tutorial to figure out how to make a puzzle game: https://www.youtube.com/watch?v=2ii0rPoiGkw

My problem is in the first three minutes and it involves the LoadAll bit of his script. You see, unlike the guy in the tutorial, I'm using a folder for Candy whereas he's using... something. I actually can't quite tell what he's using by the icon that is shown (I'm still a bit new to Unity I guess :P). The exact icon for what Candy is is found at 1:00.

Anyway, due to my using a folder instead of... whatever he's using, I'm getting an error. To say what exactly is going on, I'll show you my script:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine.UI;
 
 public class GameController : MonoBehaviour {
 
     public Sprite bgImage;
 
     public List<Button> btns = new List<Button> ();
 
     public Sprite[] puzzles;
 
     public List<Sprite> gamePuzzles = new List<Sprite>();
 
     private bool firstGuess, secondGuess = true;
 
     private int countGuesses;
     private int countCorrectGuesses;
     private int gameGuesses;
 
     private int firstGuessIndex, secondGuessIndex;
 
     private string firstGuessPuzzle, secondGuessPuzzle;
 
     void Awake (){
         puzzles = Resources.LoadAll<Sprite> ("Sprites/Candy");
     }
 
 
 
     // Use this for initialization
     void Start () {
         GetButtons ();
         AddListeners ();
         AddGamePuzzles ();
         gameGuesses = gamePuzzles.Count / 2;
         Shuffle (gamePuzzles);
     }
     
     // Update is called once per frame
     void GetButtons () {
         GameObject[] objects = GameObject.FindGameObjectsWithTag ("PuzzleButton");
             for (int i = 0; i < objects.Length; i++) {
             btns.Add(objects [i].GetComponent<Button> ());
             btns [i].image.sprite = bgImage;;
         }
     }
 
     void AddGamePuzzles (){
         int looper = btns.Count;
         int index = 0;
 
         for(int i = 0; i < looper; i++){
             if (index == looper / 2) {
                 index = 0;
             }
 
             gamePuzzles.Add (puzzles [index]);
 

Don't mind the parsing errors. I just want to show what is necessary. Anyway, I'm getting an error regarding the last line of code. It says the following: "Array index is out of range."

I know that this error is regarding the Resources.LoadAll bit, because that is the ONLY time in the entire tutorial that I had a slightly different situation before me, and that situation is that I have a folder for "Candy" rather than... whatever that guy has. Is there some way to fix this, or am I utterly doomed D: