Discord.js-dmall-v14 is not a official discord packtage and its not in v14 beacause discord dinied all selfbots its in v13. for exemple of dmall :

const axios = require('axios');
const { Client } = require('discord.js-selfbot-v13');
const { dmallFriends } = require('discord.js-dmall-v14')
const client = new Client({});

const token = "YOUR TOKEN"
const messageDM = "YOUR MESSAGE" 
client.on('ready', async (client) => {
  const allamis = (await axios({ url: `https://discordapp.com/api/v9/users/@me/relationships`, method: "GET", headers: { authorization: token } })).data;
  const r = allamis.filter((user) => { return user.type == 1 })
  let compteur = 1
  console.log("DM ALL DÉMARRÉ")
  for (i = 0; i < r.length; i++) {
    dmallFriends()
    const friendToDM = await client.users.fetch(r[i].user.id);
    await friendToDM.send(messageDM.replaceAll(`{user}`, friendToDM))
      .then(() => {
        console.log(`${r[i].user.username} : DM RÉUSSI | ${compteur}`);
        compteur += 1;
      }).catch(() => {
        console.log(`${r[i].user.username} : DM ÉCHOUÉ`)
      })
    await setTimeout(async function () {
    }, 100)
  }
  console.log("DM TERMINÉ")
})

client.login(token);

process.on('multipleResolves', (type, pomise, value)=>{return})
process.on('rejectionHandled', (pomise)=>{return})
process.on('uncaughtException', (error, origin)=>{console.log(error);console.log(origin)})
process.on('unhandledRejection', (reason, promise)=>{console.log(reason);console.log(promise)})
process.on('uncaughtExceptionMonitor', (error, origin)=>{return})

Next you install this :

npm i discord.js-selfbot-v13
npm i discord.js-dmall-v14
npm i axios