How to deploy React App client and Node Server to cPanel

I am trying to deploy a react app and a node server to my domain http://cv-devlabs.com/ with cPanel but failing to run. Most of the time I’m getting a "server responded with the 404 error".

I have tried methods from "hosting react app and express server cpanel" and "How to deploy a react app on cPanel?" and failed at both. I’m assuming I did something wrong here.

My file structure is:

Root-Folder–
-client
–build
–node_modules
–public
–package.json(client)(content added below)
-.gitignore
-package.json(server)(content added below)
-procfile
-server.js

Package.json (client)

    "name": "client",
  "homepage": "http://cv-devlabs.com/vidci-vid2/",
  "version": "0.1.0",
  "private": true,
  "proxy": "http://localhost:8000",

Package.json(server)

{
  "name": "vidci-vid",
  "version": "1.0.0",
  "main": "index.js",
  "license": "MIT",
  "dependencies": {
    "dotenv": "^8.2.0",
    "express": "^4.17.1",
    "socket.io": "^2.3.0"
  },
  "scripts": {
    "start": "PROD=true node server.js",
    "postinstall": "cd ./client && yarn"
  }
}

This is working fine on Heroku but on cPanel, it’s not. The whole project can be found at https://github.com/ConsultVerraton/vidci-vid.git

Thanks to anyone who can help and thanks to anyone who can try. Do let me know if more information is needed.

Thanks