Trouble Saving and Loading Serialization

Hello,

I am hoping someone would be able to help me, I have spent a while trying to serialise data within my project. The code is as follows:

     void OnEnable()
     {
         if(File.Exists(Application.persistentDataPath + "/playerinfo.dat"))
         {
             BinaryFormatter bf = new BinaryFormatter();
             FileStream file = File.Open(Application.persistentDataPath + "/playerinfo.dat", FileMode.Open);
             PlayerData data = (PlayerData)bf.Deserialize(file);
             Debug.Log(data.gold);
             file.Close();
         }
     }
 
     void OnDisable()
     {
         BinaryFormatter bf = new BinaryFormatter();
         FileStream file = File.Create(Application.persistentDataPath + "/playerinfo.dat");
         PlayerData data = new PlayerData();
         data.gold = gold;
         Debug.Log(data.gold);
         data.goldPerClick = goldPerClick;
 
         bf.Serialize(file, data);
         file.Close();
     }
     [Serializable]
     class PlayerData
     {
         public float gold;
         public int goldPerClick;
         
     }
 }

As you can see from the above code i am looking at an automatic save and load system, I have added some Log commands and have noticed the data saves correctly but when loading returns to zero, I have no code within my game resetting these values.

I have also managed to find the incrypted data file so am certain its an issue with my load code, I would really appritiate it if anyone would be able to lend a noob a hand!