Hi Roy Hevrony

Following things you need to check
1. Make sure you have added app.use(express.json()); in server/index.js as shown HERE

2. Make sure, you have added name for each input field in react form as shown HERE at line number 57,67,77 and 87

3. If it still does not work, clone my repository and verify the application by running it as you might have missed some minor code

Hope that helps.