GameOverController.cs

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;

public class GameOverController : MonoBehaviour{
    [SerializeField] private Text ScoreText;
    [SerializeField] private Text HighScoreText;
    [SerializeField] private ScoreData scoreData;

    private void Start(){
        ScoreText.text = "Score: " + scoreData.CurrentScore;
        HighScoreText.text = "High Score: " + scoreData.HighScore;
    }

    public void Restart(){
        SceneManager.LoadScene(1);
    }

    public void BackToMenu(){
        SceneManager.LoadScene(0);
    }
}