Cannot Convert from NewGame to CubeAI

I am trying to save my game and when people press new game it resets the variables but I am getting t$$anonymous$$s error. Here is my code for when you press the new game button.

 public class NewGame : MonoBehaviour
 {
     public float aiVelocityMultiplier;
     public float aiVelocity;
     public float aiDistance;
     public void NewGameSave()
     {
         aiVelocityMultiplier = 0.1f;
         aiVelocity           = 0.1f;
         aiDistance           = 50f;
         SaveSystem.SavePlayer(t$$anonymous$$s);
     }
 }
 

Here are my code files for saving and loading.

 public class Player : MonoBehaviour
 {
     public float aiVelocityMultiplier;
     public float aiVelocity;
     public float aiDistance;
     public void Start()
     {
         aiVelocityMultiplier += Random.Range(-0.10f, 0.10f);
         aiVelocity           += Random.Range(-0.05f, 0.05f);
         aiDistance           += Random.Range(-20f, 20f);
     }
     void Update()
     {
         if(t$$anonymous$$s.transform.c$$anonymous$$ldCount == 1)
         {
             SavePlayer();
             print("yes");
             SceneManager.LoadScene(0);
         }
     }
     public void SavePlayer()
     {
         SaveSystem.SavePlayer(t$$anonymous$$s.transform.GetC$$anonymous$$ld(0).gameObject.GetComponent<CubeAI>());
     }
     public void LoadPlayer()
     {
         PlayerData data = SaveSystem.LoadPlayer();
 
         aiVelocityMultiplier = data.aiVelocityMultiplier;
         aiVelocity = data.aiVelocity;
         aiDistance = data.aiDistance;
     }
 }
 
 public static class SaveSystem
 {
     public static void SavePlayer (CubeAI player)
     {
         BinaryFormatter formatter = new BinaryFormatter();
         string path = Path.Combine(Application.persistentDataPath, "player.fun");
         FileStream stream = new FileStream(path, FileMode.Create);
 
         PlayerData data = new PlayerData(player);
 
         formatter.Serialize(stream, data);
         stream.Close();
     }
 
     public static PlayerData LoadPlayer()
     {
         string path = Path.Combine(Application.persistentDataPath, "player.fun");
         if(File.Exists(path))
         {
             BinaryFormatter formatter = new BinaryFormatter();
             FileStream stream = new FileStream(path, FileMode.Open);
 
             PlayerData data = formatter.Deserialize(stream) as PlayerData;
             stream.Close();
 
             return data;
         }
         else
         {
             return null;
         }
     }
 }
 [System.Serializable]
 public class PlayerData
 {
     public float aiVelocityMultiplier;
     public float aiVelocity;
     public float aiDistance;
 
     public PlayerData (CubeAI player)
     {
         aiVelocityMultiplier = player.aiVelocityMultiplier;
         aiVelocity = player.aiVelocity;
         aiDistance = player.aiDistance;
 
     }
 }