HighScore and int!

Hi!I'm new in the script'context , i have done t$$anonymous$$s script, but unity doesn't create the $$anonymous$$ghscore file , i don't know how get my Int definition of score from my GameScore script (the score int isn't a static int)

please help me :(

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

 public class GameManager : MonoBehaviour
 {
     public Text HighScoreGO;
     public GameObject enemySpawner;
     public GameObject playButton;
     public GameObject playerS$$anonymous$$p;
     public GameObject GameOverGO;
     public GameObject scoreUITextGO;
     public GameObject TimeCounterGO;
     public GameObject ShootButton;   
     int score;
 
 
     public enum GameManagerState
     {
         Opening,
         Gameplay,
         GameOver,
     }
 
     GameManagerState GMState;
 
     // Use t$$anonymous$$s for initialization
     void Start()
     {
 
         GMState = GameManagerState.Opening;
 
         score = GameScore.Score2;
 
 
     }
 
     void UpdateGameManagerState()
     {
         switch (GMState)
         {
             case GameManagerState.Opening:
 
 
                 GameOverGO.SetActive(false);
 
                 playButton.SetActive(true);
 
                 HighScoreGO.text = ((int)PlayerPrefs.GetFloat("$$anonymous$$ghscore")).ToString();
                 
 
 
 
 
                 break;
             case GameManagerState.Gameplay:
 
 
 
                 scoreUITextGO.GetComponent<GameScore>().Score = 0;
 
                 playButton.SetActive(false);
 
                 playerS$$anonymous$$p.GetComponent<PlayerControl>().Init();
 
                 enemySpawner.GetComponent<EnemySpawner>().ScheduleEnemySpawner();
 
                 TimeCounterGO.GetComponent<TimeCounter>().StartTimeCounter();
 
                 ShootButton.SetActive(true);
 
 
                 break;
             case GameManagerState.GameOver:
 
                
                 TimeCounterGO.GetComponent<TimeCounter>().StopTimeCounter();
 
                 enemySpawner.GetComponent<EnemySpawner>().UnscheduleEnemySpawner();
 
 
 
 
                 ChangeHighScore();
 
 
 
 
 
                 Invoke("ChangeToOpeningState", 6f);
 
                 GameOverGO.SetActive(true);
                 ShootButton.SetActive(false);
 
                 break;
 
 
 
         }
     }
 
 
 
     public void SetGameManagerState(GameManagerState state)
     {
         GMState = state;
         UpdateGameManagerState();
     }
     public void StartGamePlay()
     {
         GMState = GameManagerState.Gameplay;
         UpdateGameManagerState();
 
     }
 
     public void ChangeToOpeningState()
     {
         SetGameManagerState(GameManagerState.Opening);
     }
 
 
 
     public void ChangeHighScore()
     {
         if (PlayerPrefs.GetFloat("$$anonymous$$ghscore") < score)
         {
             PlayerPrefs.SetFloat("$$anonymous$$ghscore", score);
         }
     }
 
 
 
 
 
 
 }