animation problem with eulerAngles

Hello everyone

I have a problem I'm writing a script for a 3D character under Background 2D May I have a rotation offset problem

Code (CSharp):

1. public float Walk = 3 ;
2.  
3.  
4. void Update () {
5.  
6.  
7.         if (Input.GetKey(KeyCode.DownArrow)) {
8.  
9.             transform.Translate (0, 0, Walk * Time.deltaTime);
10.             GetComponent<Transform>().eulerAngles = new Vector3(0, 0, 0);
11. anim.Play ("ANH_MAIN_F0_FRJ_RUN");
12.          
13.  
14.  
15.  
16.         }
17.  
18.         if (Input.GetKey(KeyCode.LeftArrow))
19.         {
20.             GetComponent<Transform>().eulerAngles = new Vector3(0, -90, 0);
21.             transform.Translate(0, 0, -Walk * Time.deltaTime);
22. anim.Play ("ANH_MAIN_F0_FRJ_RUN");
23.  
24.  
25.  
26.         }
27.  
28.         if (Input.GetKey(KeyCode.RightArrow)) {
29.  
30.             GetComponent<Transform>().eulerAngles = new Vector3(0, 90, 0);
31.             transform.Translate (0, 0, -Walk * Time.deltaTime);
32. anim.Play ("ANH_MAIN_F0_FRJ_RUN");
33.        
34.  
35.  
36.         }
37.  
38.  
39.         if (Input.GetKey(KeyCode.UpArrow)) {
40.  
41.             transform.Translate (0, 0, Walk * Time.deltaTime);
42.             GetComponent<Transform>().eulerAngles = new Vector3(0, 180, 0);
43. anim.Play ("ANH_MAIN_F0_FRJ_RUN");
44.      
45.  
46.         }
47.        
48.     }

I have this problem only in the left right keys

I heard that my animations that makes me this rotation problem

is what has a solution to this problem ?