Problem loading reference

This is my frontend package.json

  "name": "jeolight",
  "proxy": "http://localhost:7000",
  "version": "0.1.0",
  "private": true,
  "dependencies": {
		 "@testing-library/jest-dom": "^5.16.5",
		...
	 }

Then this is the server.js

1import express from 'express';
2import data from './data.js';
3
4const app = express();
5
6app.get('/api/cars', (req, res) => {
7    res.send(data.cars);
8});
9const port = process.env.PORT || 7000;
10app.listen(port, () => {
11    console.log(`server running at http://localhost:${port}`);
12});

Here's the problem

Problems loading reference 'https://json.schemastore.org/package': Unable to load schema from 'https://json.schemastore.org/package': getaddrinfo ENOTFOUND json.schemastore.org.

and on the console it is returning error status code 404 pls anyone with the solution?