Healthbar system not working correctly

Hey guys im having a problem with the healthbar Scrollbar when my character recieves damage from a ai or bot the health bar gets cut at like 50% and it does not work on the health system correctly can you help me ?

This is the whole script but i still cant fix it

using UnityEngine; using System; using UnityStandardAssets.Utility; using System.Collections; using UnityEngine.UI;

 public class EnemyHealthRPC : Photon.MonoBehaviour
 {
     public GameObject hitFlash;
     public GameObject hitShield;
     public AudioSource flagdrop;
     public float health = 100f;
     public float hitPoints = 10;
     public AudioClip hitdamage;
     public AudioClip dieSound;
     public Transform MasterchiefRagdoll;
     public Rigidbody deadReplacement;
     public GameObject MasterchiefRagdollDestroy;
     public Transform NM;
     public Transform flag;// dit is een box voor als we de flag hebben.
     public bool isDie = false;
     public Scrollbar HealthBar;
 
 
     void Awake()
     {
         MasterchiefRagdollDestroy.GetComponent<DestroyAther>().enabled = false;
         hitFlash.SetActive(false);
         hitShield.SetActive(false);
         //HealthBar = HealthBar.transform.FindDeepChild("HealthBar");
     }
 
 
     void hitdamageSound()
     {
         AudioSource.PlayClipAtPoint(hitdamage, transform.position);
         
     }
 
     [PunRPC]
     public void TakeHealth(float amount)
     {
         
         if (health <= 100)
         {
             hitdamageSound();
             
             health += amount;
             HealthBar.size += health;
         }
         if (health > 200f)
         {
             AudioSource.PlayClipAtPoint(dieSound, transform.position);
             
         }
 
     }
 
     IEnumerator HealthFlash()
     {
         
         hitShield.SetActive(true);
         hitFlash.SetActive(true);
         print(Time.time);
         yield return new WaitForSeconds(2);
         print(Time.time);
         hitFlash.SetActive(false);
         hitShield.SetActive(false);
 
     }
 
     [PunRPC]
     public void TakeDamage (float amount)
     {
        
         hitdamageSound();
         health -= amount;
         HealthBar.size -= health;
         AudioSource.PlayClipAtPoint(hitdamage, transform.position);
         StartCoroutine(HealthFlash());
         if (health <= 0f)
         {
             AudioSource.PlayClipAtPoint(dieSound, transform.position);
             Die();
         }
     }
 
     void Die()
     {
         if (flag == null && transform.Find("Flag"))
         {
             flag = transform.Find("Flag");
             AudioSource audio = GetComponent<AudioSource>();
             audio.Play();
             flag.transform.parent = null;
         }
         else
         {
             //do nothing.
         }
         
         //
         if (MasterchiefRagdoll != null)
         {
             isDie = true;
             //Transform NM = GameObject.FindWithTag("NetworkManager").transform;
             //NM.SendMessage("IdidDie", 5.0F);
             //MasterchiefRagdoll.parent = null;
             Rigidbody clone;
             clone = Instantiate(deadReplacement, transform.position, transform.rotation) as Rigidbody;
             clone.velocity = transform.TransformDirection(Vector3.forward * 10);
             //Destroy(this.photonView);
             
             Destroy(gameObject);
             PhotonNetwork.Destroy(gameObject);
 
 
         }
         else
         {
             //Transform NM = GameObject.FindWithTag("NetworkManager").transform;
 
             //NM.SendMessage("IdidDie", 5.0F);
 
             Destroy(this.photonView);
 
             
             Destroy(gameObject);
             PhotonNetwork.Destroy(gameObject);
         }
     }
 }

i do think its this part thats wrong . HealthBar.size -= health; by the way i do know that i have sounds like die sound for multiple functions but i will change that later in the game