I used my backend server.js in fs.readdir and Now I host it on render then get 500 error status code

// server.js
const express = require(‘express’);
const cors = require(‘cors’);
const fs = require(‘fs’);
const Papa = require(‘papaparse’);

const app = express();
const PORT = 3001;
let CSV_DIRECTORY = ‘E:/MyData/’;

app.use(cors());
app.use(express.json());

app.post(‘/set-directory’, (req, res) => {
const { directory } = req.body;
CSV_DIRECTORY = directory;
res.send(‘Directory set successfully’);
console.log(Directory set successfully: ${CSV_DIRECTORY});
});

app.get(‘/get-directory’, (req, res) => {
res.json({ csvDirectory: CSV_DIRECTORY });
});

app.get(‘/csv-data/:id’, (req, res) => {
const id = req.params.id;
const filePath = ${CSV_DIRECTORY}${id}.csv;

if (!fs.existsSync(filePath)) {
return res.status(404).json({ error: ‘File not found’ });
}

try {
const fileContent = fs.readFileSync(filePath, ‘utf8’);
const parsedData = Papa.parse(fileContent, { header: true }).data;
res.json({ fileName: id, data: parsedData });
} catch (err) {
console.error(‘Error reading or parsing file:’, filePath, err);
res.status(500).json({ error: ‘Internal server error’ });
}
});

app.get(‘/csv-data’, (req, res) => {
console.log(‘Working 1’)
const csvFiles = ;
console.log(‘Working 2’)
fs.readdir(CSV_DIRECTORY, (err, files) => {
console.log(‘Working 3’)
if (err) {
console.log(‘Workingerr’, err)
return res.status(500).send({ error: ‘Error reading directory’, err });
}

files.forEach((file) => {
  console.log('Working 4')
  const fileNameWithoutExtension = file.split('.').slice(0, -1).join('.');
  const fileNameLower = file.toLowerCase();
  if (fileNameLower.endsWith('.csv')) {
    console.log('Working 5')
    const filePath = CSV_DIRECTORY + file;
    try {
      console.log('Working 6')
      const fileContent = fs.readFileSync(filePath, 'utf8');
      const parsedData = Papa.parse(fileContent, { header: true }).data;
      csvFiles.push({ fileName: fileNameWithoutExtension, data: parsedData });
    } catch (err) {
      console.error('Error reading or parsing file:', filePath, err);
    }
  }
});

res.json(csvFiles);

});
});

app.listen(PORT, () => {
console.log(Server is running on port ${PORT});
});

this is my code and I want to import .CSV files from my Computer or PC’s specific drive and I written this code and that is working perfect in my localserver port 3001 but when I Host it in render.com then my csv-data and csv-data/:id API’s not working it give me 500 error status code please give me solution if any one have and know me in reder.com have any restrication for access computer or PC’s specific PATH.

E:/MyData/ doesn’t exist on Render.