I can't create a room in multiplayer

Here’s the error:

JoinRoom failed. A roomname is required. If you don’t know one, how will you join

stupidest mistake I’ve ever seen

Here’s the code:

using System.Collections; 
using System.Collections.Generic; 
using UnityEngine; 
using UnityEngine.UI; 
using Photon.Pun; 
using Photon.Realtime; 
 
public class MenuManeger : MonoBehaviourPunCallbacks 
{ 
    [SerializeField] InputField joinInput; 
    [SerializeField] InputField createInput; 
 
    public void CreateRoom() 
    { 
        RoomOptions roomOptions = new RoomOptions(); 
        roomOptions.MaxPlayers = 4; 
        PhotonNetwork.CreateRoom(createInput.text, roomOptions); 
    } 
 
    public void JoinRoom() 
    { 
        PhotonNetwork.JoinRoom(joinInput.text); 
    } 
 
    public override void OnJoinedRoom() 
    { 
        PhotonNetwork.LoadLevel("Game"); 
    } 
}