Register user into app in SwiftUI using Firebase

I am making app which one of functionality is register user with firebase, but sometime when I register user I got app crash but user is added into db. I am getting error like this: EXC_BAD_ACCESS (code=2, address=0x2600000000) or adres = 0x10 which mean the is some memory leak but when I use instrumental leak every thing is ok.

Second weird thing is that when I use instrumental leak I am not getting error (I added something like 40 users) but when I close instrumental and rebuilt I got crash in max 3 attempts.

//  FormComponent.swift
//  SpaceManager
//
//  Created by Kuba Kromomołowski on 17/04/2024.
//

import Foundation
import SwiftUI

struct FormComponent: View {
    var isRegister: Bool = true
    @State private var repeatedPassword: String = ""
    @StateObject private var loginHandler = LoginViewModel()
    @StateObject private var registerHandler = RegisterViewModel()
    @EnvironmentObject var permissionViewModel: PermissionViewModel
    var body: some View {
        Form {
            TextField("Email", text: isRegister ? $registerHandler.email : $loginHandler.email)
                .textFieldStyle(RoundedBorderTextFieldStyle())
                .font(.system(size: 25))
                .multilineTextAlignment(.center)
                .autocapitalization(.none)
                .disableAutocorrection(true)
            SecureField("Hasło", text: isRegister ? $registerHandler.password : $loginHandler.password)
                .textFieldStyle(RoundedBorderTextFieldStyle())
                .font(.system(size: 25))
                .multilineTextAlignment(.center)
                .autocapitalization(.none)
                .disableAutocorrection(true)
            if (isRegister) {
                SecureField("Powtórz haslo", text: $registerHandler.repeatedPassword)
                    .textFieldStyle(RoundedBorderTextFieldStyle())
                    .font(.system(size: 25))
                    .multilineTextAlignment(.center)
                    .autocapitalization(.none)
                    .disableAutocorrection(true)
            }
            BtnClearComponet(btnText: isRegister ? "Zarejestruj się" : "Zaloguj się",
                                       btnRegister: isRegister,
                                       action: {
                                          if isRegister {
                                              registerHandler.registerUser() {
                                                  permissionViewModel.getPermission()
                                              }
                                          } else {
                                              loginHandler.userLogin() {
                                                  permissionViewModel.getPermission()
                                              }
                                          }
                                       },
                                       loginHandler: loginHandler,
                                       registerHandler: registerHandler
            )
                .padding(.bottom, 5)
        }
        .frame(width:350,height:400)
        .scrollContentBackground(.hidden)
        .padding(.top, 50)
    }
}


//
//  RegisterViewModel.swift
//  SpaceManager
//
//  Created by Kuba Kromomołowski on 03/05/2024.
//

import Foundation
import Firebase
import FirebaseAuth
import FirebaseFirestore

class RegisterViewModel : ObservableObject {
    @Published var email: String = ""
    @Published var password: String = ""
    @Published var repeatedPassword: String = ""
    
    @Published var isFail: Bool = false
    @Published var message: String = ""
    

    func registerUser(completion: @escaping () -> Void) {
        if(!validInput()){
            return
        }
        Auth.auth().createUser(withEmail: email, password: password) { [weak self] res, 
err in
            guard let self = self else { return }
            if let err = err {
                self.isFail = true
                self.message = "Błąd przy rejestracji \(err.localizedDescription)"
                return
            }
            guard let userID = res?.user.uid else {
                return
            }
//            DispatchQueue.main.async {
               // print("Starting adding...")
                self.addIntoDatabe(userID: userID, email: self.email)
//            }
            completion()
        }
    }
 
    private func addIntoDatabe(userID: String, email: String) {
        let newUser = User(uid: userID, email: email, permission: Permission.Admin, itemReads: [["Prop":2]],
                           numberOfAddedItem: 0, numberOfReadItem: 0)
        let db = Firestore.firestore()

        db.collection("users")
            .document(userID)
            .setData(["uid": newUser.uid, "email": newUser.email, "permission": newUser.permission.rawValue, "itemReads": newUser.itemReads, "numberOfAddedItem": newUser.numberOfAddedItem, "numberOfReadItem": newUser.numberOfReadItem])
        print("User has been added into db")
    }
}