fixed

Assets/Scripts/LevelGenerator.cs

@@ -4,6 +4,7 @@ using UnityEngine;
 
 public class LevelGenerator : MonoBehaviour
 {
+    public static LevelGenerator instance{get; private set;}
     [SerializeField]private GameObject LevelPrefab;
     [SerializeField]private GameObject TopPrefab;
     private List<GameObject> spawnedLevels = new List<GameObject>();
@@ -13,17 +14,22 @@ public class LevelGenerator : MonoBehaviour
     [SerializeField]private float maxHigh;
 
     [SerializeField]private List<float> Levels;
+
+    void Awake(){
+        instance = this;
+    }
+
     void Start()
     {
-        GenerateAhead(150);
     }
 
 
     public void GenerateAhead(int count = 10){
         if(Levels.Count <= 0){
             Levels = new List<float>();
-        }
         Levels.Add(1);
+
+        }
         int startIndex= Levels.Count;
         int lastIndex = Levels.Count +count;
         for(int i =startIndex; i < lastIndex; i++){