fix bug

Assets/Scripts/Managers/PlayerDataManager.cs

@@ -11,7 +11,13 @@ public class PlayerDataManager : MonoBehaviour
     private PlayerData data3;
     public List<bool> availableSlot = new List<bool>() { false, false, false };
 
-    void Awake() {
+    void Awake()
+    {
+        data0 = FileHandler.ReadFromJSONPrefs<PlayerData>("PlayerData0.json");
+        if (data0 == null)
+        {
+            data0 = new PlayerData();
+        }
         data1 = FileHandler.ReadFromJSONPrefs<PlayerData>("PlayerData1.json");
         if (data1 == null) {
             data1 = new PlayerData();