SyntaxError: Cannot use import statement outside a module next.config.js firebase pwa

After update node version I get this error in next.config.js:

import { app } from './firebase';^^^^^^SyntaxError: Cannot use import statement outside a module

The same when I tried to use next/dynamic and require.

But when I delete import for app I have this:

const firestore = app.firestore();                    ^ ReferenceError: app is not defined

I use next-pwa, CNA and I try to turn on enableIndexedDbPersistence and cacheSizeBytes for Firebase.Before update node wersion, I didn't have import and it was ok. Now isn't wrong.In another project I use yarn and this project npm.

My next config:

    /** @type {import('next').NextConfig} */const withPWA = require("next-pwa");import('firebase/firestore').then(() => {  const firestore = app.firestore();  // Use Cloud Firestore ...  firestore().settings({    cacheSizeBytes: 400  });  firestore.enableIndexedDbPersistence()  .catch((e) => {    if (e.code === 'failed-precondition') {      console.error(e.code)    } else if (e.code === 'unimplemented') {      console.error(e.code)    }  });});module.exports = withPWA({  reactStrictMode: true,  i18n: {    locales: ['en', 'jp', 'pl'],    defaultLocale: 'en',  },  images: {    deviceSizes: [280, 320, 375, 425, 768, 1024, 1200, 1440, 2560],    loader: 'default',    domains: ['firebasestorage.googleapis.com', 's.yimg.com'],    formats: ['image/avif', 'image/webp'],  },  pwa: {    dest: "public",    register: true,    skipWaiting: true,  },});

My firebase.js:

import { initializeApp } from 'firebase/app';import { getAuth } from 'firebase/auth';import { getStorage } from 'firebase/storage';import { getFirestore } from 'firebase/firestore';const firebaseConfig = {  apiKey: `${process.env.NEXT_PUBLIC_API_KEY}`,  authDomain: `${process.env.NEXT_PUBLIC_AUTH_DOMAIN}`,  projectId: `${process.env.NEXT_PUBLIC_PROJ_ID}`,  storageBucket: `${process.env.NEXT_PUBLIC_STORAGE_BUCKET}`,  messagingSenderId: `${process.env.NEXT_PUBLIC_SENDER_ID}`,  appId: `${process.env.NEXT_PUBLIC_APP_ID}`};export const app = initializeApp(firebaseConfig);export const auth = getAuth(app);export const db = getFirestore(app);export const storage = getStorage(app);

Please help me.