Slash command error

why is it showing this when i run /wave in chat? main code: require('dotenv').config(); const { Client, IntentsBitField } = require('discord.js'); const client = new Client({ // make sure all 3 intents are enabled in developer portal intents: [ IntentsBitField.Flags.Guilds, IntentsBitField.Flags.GuildMembers, IntentsBitField.Flags.GuildMessages, IntentsBitField.Flags.MessageContent, ], }); client.on('ready' , (c) => { console.log(${c.user.tag} is online.); }); client.on('interactionCreate', (interaction) => { if (!interaction.isChatInputCommand()) return; if (interaction.commandName === 'wave') { interaction.reply('Hey👋!'); } }); client.login(process.env.TOKEN); register command code: require('dotenv').config(); const { REST , Routes} = require ('discord.js'); const commands = [ { name: 'wave', description: 'wave to the bot :)', }, ]; const rest = new REST({version: '10'}).setToken(process.env.TOKEN); (async () => { try { console.log('Registering slash commands...'); await rest.put ( Routes.applicationGuildCommands(process.env.CLIENT_ID, process.env.GUILD_ID), {body: commands} ); console.log('Slash commands were registered successfully!'); } catch (error){ console.log(There was an error: ${error}); } })();