SwiftUI Essential 2nd Tutorial Longitude Latitude CLLocationCoordinate2D - Preview Crashed

Hello, I'm new here. I got Preview Crashed in 2nd SwiftUI Essential Tutorial (Building List & Navigation) when I change longitude and latitude to my office and wrapped it's detail in LandmarkDetail.swift (crashed here). But it running well in MapView.siwft and CircleImage.swift. Here is my code :

//MapView.swift
import SwiftUI
import MapKit

struct MapView: View {
    var coordinate: CLLocationCoordinate2D
    
    @State private var region = MKCoordinateRegion()

    var body: some View {
        Map(coordinateRegion: $region)
            .onAppear {
                setRegion(coordinate)
            }
    }

    private func setRegion(_ coordinate: CLLocationCoordinate2D) {

        region = MKCoordinateRegion(
            center: coordinate,
            span: MKCoordinateSpan(
                    latitudeDelta: 0.005, 
                    longitudeDelta: 0.005)
                 ) 
    }
}

struct MapView_Previews: PreviewProvider {
    static var previews: some View {
        MapView(coordinate: CLLocationCoordinate2D(
           latitude: -6.256108,  
           longitude: 106.880838)) //custom location, instead of default on tutorial
    }
}

//CircleImage.swift
import SwiftUI

struct CircleImage: View {
    var image: Image
    var body: some View {
        image
            .resizable()
            .frame(width: 250, height: 250, alignment: .center)
            .clipShape(Circle())
            .overlay {
                Circle().stroke(.white, lineWidth: 4)
            }
            .shadow(radius: 7)
    }
}

struct CircleImage_Previews: PreviewProvider {
    static var previews: some View {
        CircleImage(image: Image("bkkbn")) //custom image, instead of default on tutorial
    }
}

//landmarkData.json
[
{
        "name": "Lake Umbagog",
        "category": "Lakes",
        "city": "Errol",
        "state": "New Hampshire",
        "id": 1012,
        "isFeatured": false,
        "isFavorite": false,
        "park": "Umbagog National Wildlife Refuge",
        "coordinates": {
            "longitude": -71.056816,
            "latitude": 44.747408
        },
        "description": "Suscipit inceptos est felis purus aenean aliquet adipiscing diam venenatis, augue nibh duis neque aliquam tellus condimentum sagittis vivamus, cras ante etiam sit conubia elit tempus accumsan libero.",
        "imageName": "umbagog"
    },
    {
        "name": "Pusat",
        "category": "Office",
        "city": "Jakarta Timur",
        "state": "Jakarta",
        "id": 1013,
        "isFeatured": true,
        "isFavorite": true,
        "park": "Kantor Pusat",
        "coordinates": {
            "longitude": -6.256108,
            "latitude": 106.880838
        },
        "description": "Ini adalah kantor pusat.",
        "imageName": "bkkbn"
    }
]

//LandmarkDetail.swift
import SwiftUI

struct LandmarkDetail: View {
    var landmark: Landmark
    var body: some View {
        ScrollView {
            MapView(coordinate: landmark.locationCoordinate)
                .ignoresSafeArea(edges: .top)
                .frame(height: 350)
            CircleImage(image: landmark.image)
                .offset(y: -130)
                .padding(.bottom, -130)

            VStack(alignment: .leading) {
                Text(landmark.name)
                    .font(.title)
                HStack {
                    Text(landmark.park)
                        .font(.subheadline)
                    Spacer()
                    Text(landmark.state)
                        .font(.subheadline)
                }
                .font(.subheadline)
                .foregroundColor(.secondary)
                Divider()
                Text("Deskripsi \(landmark.name)")
                    .font(.title3)
                    .foregroundColor(.secondary)
                Text(landmark.description)
            }
            .padding()
        }
        .navigationTitle(landmark.name)
        .navigationBarTitleDisplayMode(.inline)
    }
}

struct LandmarkDetail_Previews: PreviewProvider {
    static var previews: some View {
        LandmarkDetail(landmark: landmarks[1])
    }
}

Big thanks for any help or explanation.