mongoDB collection creation

i have a problem with adding a collection into my database in mongodb atlas.
I have managed to import this collection before but i accidentally deleted it and now i can’t upload it again. there is no error in my terminal. There for i don’t know what is wrong with my code.. (image of my code and terminal are attached below)

There is anyone who might know why is this can happen?

EDIT

I tried to open a new database and my all the collections was imported to it and once again, only the product collection doesn’t

//////////////////////////////////

/* require('dotenv').config({ path: '/.env' }) */
const path = require('path')
require('dotenv').config({ path: path.resolve(__dirname, '..', '.env') })
console.dir(process.env.MONGO_URI)
const mongoose = require('mongoose')

const connectDB = async () => {
  try {
    mongoose.connect(process.env.MONGO_URI, {
      useCreateIndex: true,
      useNewUrlParser: true,
      useUnifiedTopology: true,
    })
    console.log('MongoDB connection SUCCESS')
  } catch (error) {
    console.error('MongoDB connection FAIL')
    process.exit(1)
  }
}
console.dir(process.env.MONGO_URI)

module.exports = connectDB

////////////////////////////////////////////////////////////////

require('dotenv').config()

const productsData = require('./data/products')
const connectDB = require('./config/db')
const Product = require('./models/product')

connectDB()

const importData = async () => {
  try {
    /*  Product.deleteMany({}) */
    Product.insertMany(productsData)
    console.dir('Data Imported Successfuly')

    process.exit()
  } catch (error) {
    console.log(error)
    console.error('Error Ocured In Imported Data Process', error)
    process.exit(1)
  }
}

importData()

my model schema

 const mongoose = require('mongoose')
const products = require('../data/products')
const productSchema = new mongoose.Schema({
  name: {
    type: String,
    required: true,
  },
  description: {
    type: String,
    required: true,
  },
  price: {
    type: Number,
    required: true,
  },
  countInStock: {
    type: Number,
    required: true,
  },
  imageUrl: {
    type: String,
    required: true,
  },
})

module.exports = mongoose.model('Products', productSchema)

my code and terminal image