I'm trying to make my bot reply on messages but it doesn't work. Does anybody know how to fix this?

Code:

const Discord = require('discord.js');

const client = new Discord.Client({ intents: ['GuildMessages', 'GuildMessageReactions', 'GuildMessageTyping', 'MessageContent', ''] })

const prefix = '!';

client.once('ready', () => {
    console.log('MONKE BOT RISES');
});

client.on('messageCreate', message => {
    message.channel.send('pong');
    console.log('hoi');
    if(!message.content.startsWith(prefix) || message.author.bot) return;

    const args = message.content.slice(prefix.length).split(/ +/);
    const command = args.shift().toLowerCase();

    if(command === 'ping'){
        message.channel.send('pong');
    }
});



client.login('<token>');