Animator/Animations [error] cant run

Hello , i tried to make something to change the position and rotate . I used an animator controller with 3 animations idle/open/close , with 2 parametres open/close and i put the animator on the thing which i want to change the rotate and i put and the script too

error cs0103: the name 'Chest_Control' doesnt exist in the current context

 using UnityEngine;
 using System.Collections;
 
 public class Chest1 : MonoBehaviour {
 
 public Animator animator;
 bool ChestOpen;
 
     // Use this for initialization
     void Start () {
         ChestOpen = false;
         animator = GetComponent<Animator>();
     }
     
     void OnTriggerStay(Collider col)
     {
         if(col.gameObject.tag == "Player")
         {
     
             if(Input.GetKeyUp(KeyCode.E))
             {
                 ChestOpen = !ChestOpen;
                 if (ChestOpen)
                 {
                     Chest_Control("Open");
                 }
                 else
                 {
                     Chest_Control("Close");
                 }
             }
         }
     }
 }

i tried too without the animator , only with animations (2 animations open/close) and after in script i wrote the "Chest_Control" to animator.Play but again not run

What can i do to solve this ? What i do wrong on this ?