Problem by Sidebar Menu

[hajibabel]

TypeError: Cannot read property 'name' of undefined
at navBar.svelte:28:19
at Object.$$render (C:\Users\belji\Desktop\my-app17\node_modules\svelte\internal\index.js:1745:22)
at eval (/src/routes/__layout.svelte:27:134)
at Object.$$render (C:\Users\belji\Desktop\my-app17\node_modules\svelte\internal\index.js:1745:22)
at root.svelte:37:45
at $$render (C:\Users\belji\Desktop\my-app17\node_modules\svelte\internal\index.js:1745:22)
at Object.render (C:\Users\belji\Desktop\my-app17\node_modules\svelte\internal\index.js:1753:26)
at render_response (file:///C:/Users/belji/Desktop/my-app17/node_modules/@sveltejs/kit/dist/chunks/index.js:1069:28)
at async respond_with_error (file:///C:/Users/belji/Desktop/my-app17/node_modules/@sveltejs/kit/dist/chunks/index.js:1690:10)
at async respond$1 (file:///C:/Users/belji/Desktop/my-app17/node_modules/@sveltejs/kit/dist/chunks/index.js:1941:4)

<script context="module"> /** @type {import('@sveltejs/kit').Load} */ export async function load({fetch }) { const res = await fetch(`navBar.json`); if (res.ok) { return { props: { topic: await res.json(), } }; } return { status: res.status, error: new Error(`navBar.json`) }; } </script> <script> export let topic; </script>

    {topic.name}

---

import * as fs from 'fs';
import matter from 'gray-matter'

/** @type {import('@sveltejs/kit').RequestHandler} */
export async function get({ params }) {
const {fileName} = params;

var topic= [];
const directory = './src/docs'; 
const filenames = await fs.promises.readdir(`${directory}`)
    for (let filename of filenames) {
    //    console.log("------------------") 
    //    console.log(filename);
        
        const subfiles = await fs.promises.readdir(`${directory}/${filename}`)
            for (let punkte of subfiles) {
                // console.log(punkte);
               
                const myfiles = await fs.promises.readFile(`${directory}/${filename}/${punkte}`, 'utf8')
                const {data: frontmatter} = matter(myfiles)
                frontmatter["name"] = filename;
                topic.push(frontmatter);
                 // console.log(frontmatter);
            }
    }
      
return {
	body: {                                                                           
		topic

	}
}

}

$ curl http://localhost:3000/navBar.json
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 827 0 827 0 0 33926 0 --:--:-- --:--:-- --:--:-- 35956{"topic":[{"name":"Kontakt","pathname":"/Kontakt/kontakt","menu":"Kontakt","version":"20.07.r01"},{"name":"Menü","route":"Menü/Dessert","menu":"Menu","version":"21.03R01"},{"name":"Menü","route":"Menü/Gerichte","menu":"Menu","version":"21.03R01"},{"name":"Menü","route":"Menü/Getränke","menu":"Menu","version":"21.03R01"},{"name":"Menü","route":"Menü/GrillTeller","menu":"Menu","version":"21.03R01"},{"name":"Menü","route":"Menü/vegan","menu":"Menu","version":"21.03R01"},{"name":"Menü","route":"Menü/Vegetarisch","menu":"Menu","version":"21.03R01"},{"name":"Restaurant","pathname":"/Lage/lage","menu":"Restaurant","version":"21.03R01"},{"name":"Service","route":"/Service/Service","menu":"Service","version":"20.10.R01"},{"name":"Über uns","route":"/Über uns/UeberUns","menu":"Über uns","version":"21.03R01"}]}