odd animation bug c# 2D

hey guys I have a problem in a 2D game i have where the guys swings his axe and it should break a tree and it comes with this error.

MissingComponentException: There is no 'Animation' attached to the "Tree 1(Clone)" game object, but a script is trying to access it.
You probably need to add a Animation to the game object "Tree 1(Clone)". Or your script needs to check if the component is attached before using it.
UnityEngine.Animation.Play (System.String animation)
Hotbar.Update () (at Assets/Scripts/Hotbar.cs:66)

And I don't get why the error is there, when I try adding a animation to the tree piece every thing works but the tree spins in a circle whenever I swing my axe.

Script One Called Hotbar

Code (CSharp):

1. public class Hotbar : MonoBehaviour
2. {
3.     private treemouse TM;
4.     public bool TreeBroke = false;
5.     public GameObject hach;
6.     public AnimationClip axe;
7.     public int hotbar = 0;
8.     void Start ()
9.     {
10.         TM = gameObject.AddComponent<treemouse>();
11.         TM = GetComponent<treemouse>();
12.     }
13.     void TreeBreak ()
14.     {
15.         TreeBroke = true;
16.     }
17.     void Update ()
18.     {
19.         if(Input.GetKey(KeyCode.Alpha1))
20.         {
21.             hotbar = 0;
22.         }
23.         if(Input.GetKey(KeyCode.Alpha2))
24.         {
25.             hotbar = 1;
26.         }
27.         if(Input.GetKey(KeyCode.Alpha3))
28.         {
29.             hotbar = 2;
30.         }
31.         if(Input.GetKey(KeyCode.Alpha4))
32.         {
33.             hotbar = 3;
34.         }
35.         if(Input.GetKey(KeyCode.Alpha5))
36.         {
37.             hotbar = 4;
38.         }
39.         if(Input.GetKey(KeyCode.Alpha6))
40.         {
41.             hotbar = 5;
42.         }
43.         if(Input.GetKey(KeyCode.Alpha7))
44.         {
45.             hotbar = 6;
46.         }
47.         if(Input.GetKey(KeyCode.Alpha8))
48.         {
49.             hotbar = 7;
50.         }
51.         if(Input.GetKey(KeyCode.Alpha9))
52.         {
53.             hotbar = 8;
54.         }
55.         if(Input.GetKey(KeyCode.Mouse0))
56.         {
57.             if(hotbar == 0)
58.             {
59.                 if(TM.TreeMouse == true)
60.                 {
61.                     Invoke("TreeBreak", 1);
62.                 }
63.                 animation.Play("axe");
64.             }
65.  
66.         }
67.  
68.     }
69. }

Script Two Called treemouse

Code (CSharp):

1. public class treemouse : MonoBehaviour
2. {
3.     public bool Broke = false;
4.     public Transform Main;
5.     public GameObject woodI;
6.     private Hotbar HB;
7.     public bool TreeMouse = false;
8.     void Start ()
9.     {
10.         HB = gameObject.AddComponent<Hotbar>();
11.         HB = GetComponent<Hotbar>();
12.     }
13.     void OnMouseDown ()
14.     {
15.         TreeMouse = true;
16.     }
17.     void Update ()
18.     {
19.         if(HB.TreeBroke == true)
20.         {
21.             Instantiate(woodI, Main.position, Main.rotation);
22.             Instantiate(woodI, Main.position, Main.rotation);
23.             Instantiate(woodI, Main.position, Main.rotation);
24.             Destroy(gameObject);
25.         }
26.     }
27. }

I hope you can help.