I have some code for discord.js that sends a user a DM when they join the server. They then have to enter the password given to them, and it will then give them a role that allows them access to channels.

const Discord = require('discord.js');
const client = new Discord.Client();

client.once('ready', () => {
    console.log('Ready!');
});

client.on('guildMemberAdd', guildMember => {
    console.log("Joined");
    guildMember.send("Welcome to the server! Please enter the password given to you to gain access to the server:")
      .then(function(){
        guildMember.awaitMessages(response => message.content, {
          max: 1,
          time: 300000000,
          errors: ['time'],
        })
        .then((collected) => {
            if(response.content === "Pass"){
              guildMember.send("Correct password! You now have access to the server.");
            }
            else{
              guildMember.send("Incorrect password! Please try again.");
            }
          })
          .catch(function(){
            guildMember.send('You didnt input the password in time.');
          });
      });
});

client.login("token");

The thing is, I don't really know how to use the awaitResponses function. I do not know how to call it, because all the tutorials I find use it with message.member.

When I run my code, I get these three errors: UnhandledPromiseRejectionWarning: TypeError: guildMember.awaitMessages is not a function

UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag --unhandled-rejections=strict (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)

Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.

I do not know what lines these are referring to, so I am very confused.