'Player' AnimationEvent 'impact' has no receiver!

Hello, the console shows me this bug "'Player' AnimationEvent 'impact' has no receiver! Are you missing a component?" while im trying to hit the enemy, what is wrong over here? Just a while ago everything were fine, and now im looking for one thing for hours.Here's the code:

 using UnityEngine;
 using System.Collections;
 
 public class Player : Creature 
 {
 
 
     public static Transform opponent;
     public static bool isAttacking;
     public static Player player;
     Animation animation;
     public AnimationClip attackAnimation;
     public float attackImpact;
 
     void Awake () 
     {
         player = this;
         initAnimations ();
         isAttacking = false;
     }
 
     void initAnimations()
     {
         animation = GetComponent<Animation>();
         AnimationEvent attackEvent = new AnimationEvent ();
         attackEvent.time = attackImpact;
         attackEvent.functionName = "impact";
         attackAnimation.AddEvent(attackEvent);
     }
     
     void Impact()
     {
         opponent.GetComponent<Enemy>().GetHit(damage);    
     }
 
     void Update () 
     {
         Attack ();
     }
 
 
 
     protected override void Attack()
     {
         if (Input.GetKeyUp (KeyCode.Space)) 
         {
             if(opponent != null && Vector3.Distance(opponent.position, transform.position)<range)
             {
                 isAttacking=true;
                 animation.CrossFade(attackAnimation.name);
             }
         }
         if (!animation.IsPlaying (attackAnimation.name))
             isAttacking = false;
     }
 }