My DifficultyManager Script

using System;
using UnityEngine;

public class DifficultyManager : MonoBehaviour
{
    public enum Difficulty { Easy, Normal }
    public static Difficulty currentDifficulty { get; set; }

    public DifficultyManager(Difficulty desiredDifficulty)
    {
        currentDifficulty = desiredDifficulty;
        SaveDifficulty();
    }

    private void Start()
    {
        LoadDifficulty();
    }

    private void LoadDifficulty()
    {
        if (!PlayerPrefs.HasKey("Difficulty"))
        {
            currentDifficulty = Difficulty.Normal;
            SaveDifficulty();
        }
        else
        {
            CheckAndSetDifficulty();
        }
    }

    private void CheckAndSetDifficulty()
    {
        switch (PlayerPrefs.GetString("Difficulty"))
        {
            case "Easy":
                currentDifficulty = Difficulty.Easy;
                break;
            case "Normal":
                currentDifficulty = Difficulty.Normal;
                break;
        }
        SaveDifficulty();
    }

    private void SaveDifficulty()
    {
        PlayerPrefs.SetString("Difficulty", currentDifficulty.ToString());
        PlayerPrefs.Save();
    }

}