PREFAB TRANSFORM ERROR PLS HELP I AM NEW!!

"Setting the parent of a transform which resides in a Prefab Asset is disabled to prevent data corruption"
ERROR IS IN LINE 21 (FYI MY PREFAB FOR PLAYER AREA IS ALSO CALLED PLAYER AREA)
*THIS IS A CARD GAME(THIS IS THE DRAW CARD MECHANIC*​

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class Draw_cards : MonoBehaviour
6. {
7.     public GameObject Card1;
8.     public GameObject Card2;
9.     public GameObject PlayerArea;
10.     public GameObject EnemyArea;
11.     void Start()
12.     {
13.        
14.     }
15.  
16.     public void OnClick()
17.     {
18.         for(var i=0; i<=5; i++)
19.         {
20.             GameObject playerCard = Instantiate(Card1, new Vector3(0, 0, 0), Quaternion.identity);
21.             playerCard.transform.SetParent(PlayerArea.transform, false);
22.         }
23.     }
24.  
25. }
26.  

 

Oh i thought so too, So do you suggest i instantiate it as a game object