Fetch/Listen For A New Message In The Channel

Hello so I'm making a bot that will fetch a message in a specific channel, copies it and then sent it to another channel. I tried using messages.fetch() but it doesn't work and always returns with DiscordAPIError: Cannot send an empty message. This is what my code is currently like :

  if (message.content === 'Log'){
message.channel.messages.fetch({limit: 10})
.then(messages => {
  message.channel.send(messages)}).catch(console.error)}

I hope anyone can help me with this, thanks in advance.

Assuming you want the bot to output the content of the last 10 messages in the channel, this should work:

let msgs = [];
message.channel.messages.fetch({limit: 10})
.then(messages => {
    return messages.each(msg => msgs.push(msg.content));
})
.then(messages => {
    message.channel.send(msgs.reverse().join("\n")); // outputs the messages separated by a newline
});

If you only want to get one message you can just do:

message.channel.messages.fetch("MESSAGE_ID")
.then(msg => {
    message.channel.send(msg.content);
});

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