Playable was not Disposed

I'm having issues with my program. I have the game set up to manipulate time as the users "dies", the character is then re-spawned and time starts back up again. However shortly after time resumes the game (the background, the playable, and obstacles) freezes. I am using Unity 5.4. I am programming this though a class on Lynda.com and my code matches my instructors. The only thing different is that I am getting the warning: Assets/Scripts/ObjectPool.cs(13) : Playable was not Disposed.

The warning is showing up under the console tab in Unity. I am not sure how to fix it, and I was wondering if anyone could help. I used Visual Studio to program.

Here is my code for my time manager. using UnityEngine; using System.Collections;

 public class TimeManager : MonoBehaviour
 {
 
     public void ManipulateTime(float newTime, float duration)
     {
         if (Time.timeScale == 0)
             Time.timeScale = 0.1f;
 
         StartCoroutine(FadeTo(newTime, duration));
     }
 
     IEnumerator FadeTo(float value, float time)
     {
         for (float t = 0f; t < 1; t += Time.deltaTime / time)
         {
 
             Time.timeScale = Mathf.Lerp(Time.timeScale, value, t);
 
             if (Mathf.Abs(value - Time.timeScale) < .01f)
             {
                 Time.timeScale = value;
                yield return false;
             }
 
             yield return null;
 
         }
     }
 }
 

I also have code for my game manager which involves the time manager. using UnityEngine; using System.Collections;

 public class GameManager : MonoBehaviour {
 
     public GameObject playerPrefab;
 
     private bool gameStarted;
 
     private TimeManager timeManager;
     private GameObject player; 
     private GameObject floor;
     private Spawner spawner;
 
 
     void Awake()
     {
         floor = GameObject.Find ("Foreground");
         spawner = GameObject.Find ("Spawner").GetComponent<Spawner> ();
         timeManager = GetComponent<TimeManager> ();
 
     }
 
     // Use this for initialization
     void Start () {
 
         var floorHeight = floor.transform.localScale.y;
 
         var pos = floor.transform.position;
         pos.x = 0;
         pos.y = -((Screen.height / PixelPerfectCamera.pixelsToUnits) / 2) + (floorHeight / 2);
         floor.transform.position = pos;
 
         spawner.active = false;
 
         Time.timeScale = 0;
     }
     
     // Update is called once per frame
     void Update () {
         if (!gameStarted && Time.timeScale == 0)
         {
             if (Input.anyKeyDown)
             {
                 timeManager.ManipulateTime(1, 1f);
                 ResetGame();
             }
         }
     
     }
 
     void OnPlayerKilled()
     {
         spawner.active = false;
 
         var playerDestroyScript = player.GetComponent<DestroyOffScreen>();
         playerDestroyScript.DestoyCallback -= OnPlayerKilled;
 
        
         player.GetComponent<Rigidbody2D>().velocity = Vector2.zero;
         timeManager.ManipulateTime(0, 5.5f);
         gameStarted = false;
         
     }
         void ResetGame()
     {
         spawner.active = true;
 
         player = GameObjectUtil.Instantiate(playerPrefab, new Vector3(0, (Screen.height/PixelPerfectCamera.pixelsToUnits) / 2 +100, 0));
 
         var playerDestroyScript = player.GetComponent<DestroyOffScreen> ();
 
         playerDestroyScript.DestoyCallback += OnPlayerKilled;
 
         gameStarted = true;
     }
 
     
 }

I would greatly appreciate any help. Thank you.