Why I am not succes to register in my app in SwiftUI?

I am use firebase for my SwiftUI App, and I want to register with mail, but when I typing my mail it is throw an error like

Oops! Something went wrong. Please try again.

I do not know why? here is my code:

StatusViewModel:

class StatusViewModel: Identifiable, ObservableObject {
   
  var title: String
  var message: String
   
  init(title: String = "", message: String = "") {
    self.title = title
    self.message = message
  }
   
  static var signUpSuccessStatus: StatusViewModel {
    return StatusViewModel(title: "Successful", message: "Your account has been created successfully")
  }
   
  static var logInSuccessStatus: StatusViewModel {
    return StatusViewModel(title: "Successful", message: "Your account has been logged in successfully")
  }
   
  static var errorStatus: StatusViewModel {
    return StatusViewModel(title: "Error", message: "Oops! Something went wrong. Please try again.")
  }
}

RegisterViewModel:

import Foundation
import Combine

class RegisterViewModel: ObservableObject {
  @Published var email: String = ""
  @Published var password: String = ""
  @Published var statusViewModel: StatusViewModel?
  @Published var state: AppState
   
  private var cancellableBag = Set<AnyCancellable>()
  private let authAPI: AuthAPI
   
  init(authAPI: AuthAPI, state: AppState) {
    self.authAPI = authAPI
    self.state = state
  }
   
  func signUp() {
    authAPI.signUp(email: email, password: password)
      .receive(on: RunLoop.main)
      .map(resultMapper)
      .replaceError(with: StatusViewModel.errorStatus)
      .assign(to: \.statusViewModel, on: self)
      .store(in: &cancellableBag)
  }
}


extension RegisterViewModel {
  private func resultMapper(with user: User?) -> StatusViewModel {
    if user != nil {
      state.currentUser = user
      return StatusViewModel.signUpSuccessStatus
    } else {
      return StatusViewModel.errorStatus
    }
  }
}

struct Register: View {
   
  @ObservedObject private var viewModel: RegisterViewModel
  @State var pushActive = false
    
   init(state: AppState) {
      
   self.viewModel = RegisterViewModel(authAPI: AuthService(), state: state)
      
   }

  var body: some View {
  NavigationLink(destination: HomeView(state: viewModel.state),
                      isActive: self.$pushActive) {
                Button {
          
                  self.viewModel.signUp()
                   
                } label: {
                  Text("Register")
                    .padding()

                   
                }
              }
}
}