my discord.js bot has version 13.1.0, and my node's version is 16.7.0. I entered these commands in the terminal : npm init to create package.json and npm install discord.js to install discord package.

I writed the code in index.js, and I created config.json to put the token there.

When I run then the code it shows me 'Ready!' in the console and being online in Discord. I also can change the status and the activity of the bot without a problem. The problem here is the bot doesn't send or reply to a message.

Here's the code bellow

const { Client, Intents } = require('discord.js');
const { token } = require('./config.json');

const client = new Client({ intents: [Intents.FLAGS.GUILDS] });

client.once('ready', () => {
    console.log('Ready!');
});

client.on ('messageCreate', (message) => {
    if (message.content === 'hello') {
        message.reply('Hello')
    };
});

client.login(token);

this's config.json's code just in case.

{
    "token": "my_bot_token!"
}