channel.send is not a function? (Discord.JS) - node.js

Question

Normally I wouldn't ask for help, but I've tried almost everything and I'm stumped. Here is my code,
const Discord = require('discord.js');
const client = new Discord.Client();
const timedResponses = ["Test"]
const token = '';
client.on('ready', () =>{
console.log('the doctor is ready');
client.user.setActivity('medical documentaries', { type: 'WATCHING'}).catch(console.error);
const channel = client.channels.fetch('691070971251130520')
setInterval(() => {
const response = timedResponses [Math.floor(Math.random()*timedResponses .length)];
channel.send(response).then().catch(console.error);
}, 5000);
});
client.login(token);
The code seems to be working fine on my other bots, but for some reason it refuses to work on this one.
Edit: I tried to add console.log(channel) but I got an error. "Channel" is not defined.

Answer 1

ChannelManager#fetch returns a Promise Check the return type in the documentation
You could fix your issue by using async / await
client.once("ready", async () => {
// Fetch the channel
const channel = await client.channels.fetch("691070971251130520")
// Note that it's possible the channel couldn't be found
if (!channel) {
return console.log("could not find channel")
}
channel.send("Your message")
})
I am assuming you copied the ID manually from a text based channel, if this ID is dynamic you should check if the channel is a text channel
const { TextChannel } = require("discord.js")
if (channel instanceof TextChannel) {
// Safe to send in here
}