Перестали передаваться данные по API на VPS сервере

const
  express = require('express'),
  bodyParser = require('body-parser'),
  cors = require('cors'),
  mngs = require('mongoose'),
  work = require('./app/work'),
  validData = require('./app/validation'),
  sendCourse = require('./app/getcourse/send'),
  createExcel = require('./app/excel/create'),
  saveUser = require('./app/excel/seeder'),
  redirect = require('./app/redirect'),
  rmdb = require('./app/excel/remove'),
  hbs = require('hbs'),
  newStat = require('./app/statistics/create'),
  updateStat = require('./app/statistics/update'),
  createStat = require('./app/statistics/excel'),
 
  app = express(), server_port = 80
 
mngs.connect(require("./app/database"), { useMongoClient: true })
 
let order = 0
 
app.set('views', __dirname + '/public')
app.set('view engine', 'hbs')
 
hbs.registerHelper('check', (val1, val2, option) => val1 === val2 ? option.fn(this) : option.inverse(this))
 
app.use(cors())
app.use(bodyParser.json())
app.use(bodyParser.urlencoded({ extended: true }))
app.use(express.static(__dirname + '/public'))
app.use(express.static(__dirname + '/excel'))
 
app.get('/', (req, res) => {
  let qr = req.query, result = qr.result, sex
  if (result !== undefined) {
    sex = result[0] === 'm' ? 1 : 0
  } else sex = 0
 
  const utm = {
    source: qr['utm_source'],
    medium: qr['utm_medium'],
    campaign: qr['utm_campaign']
  }
 
  order = 1 - order
 
  const version = order + 1
 
  newStat({ done: false, version })
 
    .then(id => res.render('index', { result, sex, utm, version, id }))
 
})
 
app.get('/test', (req, res) => res.send(req.query.soc))
 
app.post('/work', (req, res) => {
  let data = req.body
 
  // fs.writeFile(__dirname + '/memem.log', 'body');
  if (validData(data)) {
 
    let phychotype = work(data)
 
    redirect(res, data.sex, phychotype.data.total)
    
    saveUser(data, phychotype)
    sendCourse(data, phychotype)
  } else res.status(501).send()
 
})
 
app.get('/create', (req, res) => createExcel(res))
 
app.get('/stats', (req, res) => createStat(res))
 
app.patch('/lxcrfsoft', (req, res) => rmdb(res))
 
app.listen(server_port, () => console.log(`Сервер запущен -p ${server_port}`))