Почему ошибка HostNotFoundError [SequelizeHostNotFoundError]: getaddrinfo ENOTFOUND 5

[kuchuluk]

Здравствуйте!
Нужно присоединиться к базе PostgreSQL через NodeJS.
Файл index.js:

require('dotenv').config()
const express = require('express')
const sequelize = require('./db')
const models = require('./models/models')

const PORT = process.env.PORT || 5000

const app = express()


const start = async () => {
    try {
        await sequelize.authenticate()
        await sequelize.sync()
        app.listen(PORT, () => console.log(`Server started on port ${PORT}`))
    } catch (e) {
        console.log(e)
    }
}

start()

файл db.js:

const {Sequelize} = require('sequelize')

module.exports = new Sequelize(
    process.env.DB_NAME, // название БД
    process.env.DB_USER, // пользователь
    process.env.DB_PASSWORD, // пароль
    {
        dialect: 'postgres',
        host: process.env.DB_HOST,
        host: process.env.DB_PORT
    }
)

файл .env:

PORT=5000
DB_NAME=online_store
DB_USER=postgres
DB_PASSWORD=root
DB_HOST=localhost
DB_PORT=5432

PostgreSQL установлена на компьютере, но вылезает в консоли ошибка:
HostNotFoundError [SequelizeHostNotFoundError]: getaddrinfo ENOTFOUND 5432
at Client._connectionCallback (D:\OpenServer\domains\testnodereact.local\server\ node_modules\sequelize\lib\dialects\postgres\conne ction-manager.js:133:2
4)
at Client._handleErrorWhileConnecting (D:\OpenServer\domains\testnodereact.local\server\ node_modules\pg\lib\client.js:305:19)
at Client._handleErrorEvent (D:\OpenServer\domains\testnodereact.local\server\ node_modules\pg\lib\client.js:315:19)
at Connection.emit (events.js:400:28)
at Socket.reportStreamError (D:\OpenServer\domains\testnodereact.local\server\ node_modules\pg\lib\connection.js:52:12)
at Socket.emit (events.js:400:28)
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:82:21) {
parent: Error: getaddrinfo ENOTFOUND 5432
parent: Error: getaddrinfo ENOTFOUND 5432
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:71:26) {
errno: -3008,
code: 'ENOTFOUND',
syscall: 'getaddrinfo',
hostname: '5432'
},
original: Error: getaddrinfo ENOTFOUND 5432
at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:71:26) {
errno: -3008,
code: 'ENOTFOUND',
syscall: 'getaddrinfo',
hostname: '5432'
}
}

[Nexus]

const {Sequelize} = require('sequelize')

module.exports = new Sequelize(
    process.env.DB_NAME, // название БД
    process.env.DB_USER, // пользователь
    process.env.DB_PASSWORD, // пароль
    {
        dialect: 'postgres',
*!*        
        host: process.env.DB_HOST,
        *!*host*/!*: process.env.DB_*!*PORT*/!*
*/!*
    }
)