Can someone improve my code?

The error occurs

"Bot token is missing. Please provide a valid toke."

even though I saved the token in the .env file.

 const { Client, GatewayIntentBits } = require('discord.js'); const { REST } = require('@discordjs/rest'); const { Routes } = require('discord-api-types/v9'); require('dotenv').config(); const token = process.env.TOKEN; if (!token) { console.error('Bot token is missing. Please provide a valid token.'); process.exit(1); } const client = new Client({  intents: [    GatewayIntentBits.Guilds,    GatewayIntentBits.GuildMessages,    GatewayIntentBits.MessageContent,    GatewayIntentBits.GuildMembers,  ], }); // Load commands dynamically from a separate file const commands = require('./commands'); const rest = new REST({ version: '9' }).setToken(token); const GUILD_ID = '1101480796134588456'; // Function to register commands const registerCommands = async () => {  try {    // Register commands for the specified guild    await rest.put(      Routes.applicationGuildCommands(client.user.id, GUILD_ID),      { body: commands }    );    console.info('Successfully reloaded application (/) commands');  } catch (error) {    console.error('Error refreshing application (/) commands:', error);  } }; // Event handler for when the bot is ready client.once('ready', () => {  console.info(`Logged in as ${client.user.tag}!`);    // Register commands after the bot is ready  registerCommands(); }); // Anti-Raid const raidCache = new Set(); const RAID_THRESHOLD = 7; // Number of members who join within a certain period of time to be considered a raid const RAID_TIMEFRAME = 53000; // Time span in milliseconds // Min age for Discord accounts const MIN_ACCOUNT_AGE = 20; // in days // Event handler for when a member joins the guild client.on('guildMemberAdd', (member) => {  raidCache.add(member.id);  setTimeout(() => {    raidCache.delete(member.id);  }, RAID_TIMEFRAME);  // Check the minimum age of the Discord account  const accountAgeInDays = (Date.now() - member.user.createdTimestamp) / (1000 * 60 * 60 * 24);  if (accountAgeInDays < MIN_ACCOUNT_AGE) {    // Take action, eg, kick a member, send notifications, etc.    member.kick('Minimum age for Discord account not met.');    console.info(`Member ${member.user.tag} was kicked for not meeting the minimum age requirement.`);  }  if (raidCache.size >= RAID_THRESHOLD) {    // Take further measures for raid protection here    member.kick('Anti-Raid: Suspicious behavior');    console.info(`Member ${member.user.tag} was kicked because of suspicious behavior.`);  } }); // Anti-nuke client.on('messageCreate', (message) => {  if (message.author.bot) return;  // Implement further checks for nuke protection here  const messageContent = message.content.toLowerCase();  if (messageContent.includes('nuke') || messageContent.includes('hs') || messageContent.includes('discord.gg/') || messageContent.includes('.gg/') || messageContent.includes('@everyone')) {    // Take further measures for nuke protection here    message.delete();    message.author.send('Your message has been deleted due to suspicious activity');  } }); // Event handler for when an interaction (slash command) is created client.on('interactionCreate', async (interaction) => {  if (!interaction.isCommand()) return;  const commandName = interaction.commandName;  if (commandName === 'ping') {    await interaction.reply('Pong!');  }  // Add more commands as needed }); // Event handler for any errors client.on('error', (error) => {  console.error('An error occurred:', error); }); // Login to Discord with the provided token client.login(token);