ive been having an issue with my code. If the user registers an account it brings them to the Main View, which is what I want however if the user uninstalls the app and reinstalls it they are unable to sign in. The app provides the user with the error "An error occurred. Please make sure your account details are accurate" and prints on Xcode "Account Found, Error fetching user document: User data is missing or could not be parsed Login error: User data is missing or could not be parsed." Im not too sure if this is an Xcode error or Firebase error. Everything on firebase seems to work when a user creates an account it has the correct info on firebase.

When I try to login It prints "Sign-in error: The supplied auth credential is malformed or has expired. Other error: The supplied auth credential is malformed or has expired. Error Domain: FIRAuthErrorDomain Error Code: 17004 Error Description: The supplied auth credential is malformed or has expired. Login Error: The supplied auth credential is malformed or has expired." Any help is appreciated AuthenticationManager: import FirebaseAuth import Combine class AuthenticationManager: ObservableObject { static let shared = AuthenticationManager() @Published var user: BoatGuardianUser? @Published var isAuthenticated: Bool = false private init() { // Check if the user is already signed in when the app starts if let firebaseUser = Auth.auth().currentUser { self.user = BoatGuardianUser(id: firebaseUser.uid, name: firebaseUser.displayName ?? "", photoURL: firebaseUser.photoURL?.absoluteString ?? "") self.isAuthenticated = true } } func signIn(email: String, password: String, completion: @escaping (Result<BoatGuardianUser, Error>) -> Void) { Auth.auth().signIn(withEmail: email, password: password) { [weak self] authResult, error in if let error = error { // Log detailed error information print("Sign-in error: \(error.localizedDescription)") self?.handleSignInError(error) completion(.failure(error)) return } guard let firebaseUser = authResult?.user else { // Log error if user not found let userInfoError = NSError(domain: "Auth", code: -1, userInfo: [NSLocalizedDescriptionKey: "User not found"]) print("User not found error: \(userInfoError.localizedDescription)") completion(.failure(userInfoError)) return } let user = BoatGuardianUser(id: firebaseUser.uid, name: firebaseUser.displayName ?? "", photoURL: firebaseUser.photoURL?.absoluteString ?? "") self?.user = user self?.isAuthenticated = true completion(.success(user)) } } func signOut() { do { try Auth.auth().signOut() self.user = nil self.isAuthenticated = false } catch { // Log error during sign out print("Error signing out: \(error.localizedDescription)") } } private func handleSignInError(_ error: Error) { let nsError = error as NSError let authErrorCode = AuthErrorCode.Code(rawValue: nsError.code) switch authErrorCode { case .networkError: print("Network error: \(nsError.localizedDescription)") case .wrongPassword: print("Wrong password: \(nsError.localizedDescription)") case .invalidEmail: print("Invalid email: \(nsError.localizedDescription)") case .userNotFound: print("User not found: \(nsError.localizedDescription)") case .userDisabled: print("User disabled: \(nsError.localizedDescription)") case .expiredActionCode: print("Expired action code: \(nsError.localizedDescription)") case .invalidActionCode: print("Invalid action code: \(nsError.localizedDescription)") case .emailAlreadyInUse: print("Email already in use: \(nsError.localizedDescription)") default: print("Other error: \(nsError.localizedDescription)") } } } struct BoatGuardianUser: Identifiable { let id: String let name: String let photoURL: String } Firebase Rules match /databases/{database}/documents { // Allow read/write on user documents only if authenticated and the user is accessing their own document match /users/{userId} { allow read, write: if request.auth != null && request.auth.uid == userId; } // Allow read access to public pins and write access only to the owner of the pin match /pins/{pinId} { // Allow read access to public pins allow read: if request.auth != null && (resource.data.isPublic == true || request.auth.uid == resource.data.userId); // Allow write access only if authenticated and the user is the owner of the pin allow write: if request.auth != null && request.auth.uid == resource.data.userId; } // Other collection rules can be added here match /otherCollection/{documentId} { allow read, write: if request.auth != null; } } }