Browser dont loading data, getting 304 status,

Question

I am building small MERN cars project with mongodb. Project was running great, but when I am pripering project for deploying to render, my section cars dont show up. Home page, registration, login page are working but cars page dont show up.

When I add this part of code to server side, I am getting axios error 404

Can you please tell me what am I doing wrong? Thanx

// only when ready to deploy
app.use(express.static(path.resolve(__dirname, './client/build')));

// only when ready to deploy
 app.get('*', (req, res) => {
  res.sendFile(path.resolve(__dirname, './client/build', 'index.html'));
});