bot does not responding to any command

const { Client, Intents } = require('discord.js');
const client = new Client({ intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES] });

client.once('ready', () => {
    console.log(`Logged in as ${client.user.tag}`);
});

client.on("messageCreate", (message) => {
    if (message.content.startsWith("ping")) {
      message.channel.send("pong!");
    }
  });

const botToken = 'MTE0NTQ5NDE5NTkyMzA2Mjg1Ng.GXEycV.Eejhj1kKzly-CVn7XL4rY53e5Q0_zavc2xzL0Q';
client.login(botToken);