Error @signUp: [TypeError: undefined is not an object (evaluating 'firebase.createUser')]

Question

I'm trying to implement my signUp screen here is the signup handle that is being called, the signup page calls, and pass in the value to my context page.

const handleSignup = async () => {
    setLoading(true)

      const user = { fullname, email, password, profilePhoto};

    try {

      const createdUser = await firebase.createUser(user)

      setUser({ ...createdUser, isLoggedIn: true });
    } catch (error) {

      console.log("Error @signUp: ", error);

    } finally {

      setLoading(false)

    }
  };

the firebaseContext page then takes in the value that has been passed in creates the account

    const FirebaseContext = createContext();
    
    if(!firebase.apps.length){
        firebase.initializeApp(auth);
    }
    
    const db = firebase.firestore();
    
    const Firebase = {
        getCurrentUser: () => {
            return firebase.auth().currentUser
        },
    
        createUser: async (user) => {
            try{
                 await firebase.auth().createUserWithEmailAndPassword(user.email, user.password);
                 const uid = Firebase.getCurrentUser().uid;
    
                 let profilePhotoUrl = "default";
    
                 await db.collection("users").doc(uid).set({
                     fullname: user.fullname,
                     email: user.email, 
                     profilePhotoUrl
                 })
    
                 if(user.profilePhoto){
                    profilePhotoUrl = await Firebase.uploadProfilePhoto(user.profilePhoto);
                 }
    
                 delete user.password;
    
                 return { ...user, profilePhotoUrl, uid};
    
            }catch(error){
                console.log("Error @createUser", error.message);
            }
        },

Exporting the file

import { FirebaseContext, FirebaseProvider, Firebase } from './FirebaseContext';
import { UserContext, UserProvider } from './UserContext';


export { FirebaseContext, Firebase, FirebaseProvider, UserContext, UserProvider };

Importing the file

import { FirebaseContext } from "../context";