Dit dan

CODE:
--------------------------------------------------------------------------------------------------
const discord = require("discord.js");

module.exports.run = async (bot, message, args) => {

    // Id van category van tickets.
    const categoryId = "601545069438435329";

    // Als bericht in ticket kanaal is dan verwijder kanaal ander zend bericht
    if (message.channel.parentID == categoryId) {

        channel.awaitMessages(filter, { max: 4, time: 10000, errors: ['time'] })
        message.channel.delete;

    } else {

        message.channel.send("Gelieve dit commando in een ticket kanaal te doen.");

    }

    var embedCloseTicket = new discord.RichEmbed()
        .setTitle("De ticket van:" + message.channel.name)
        .setDescription("✅ | Ticket is succesvol gesloten!")
        .setFooter("Zuidland Bot")
        .setTimestamp();

    // Vind kanaal voor de logs.
    var logChannel = message.guild.channels.find("name", "ticket-logging");
    if (!logChannel) return message.channel.send("Dit kanaal is niet beschikt voor deze command!");

    logChannel.send(embedCloseTicket);

}

module.exports.help = {
    name: "close",
    description: "Sluit een ticket af"
}

-----------------------------------------------------
ERROR:
nodemon] restarting due to changes...
[nodemon] starting `node index.js`
De file clear.js is geladen
De file close.js is geladen
De file hallo.js is geladen
De file leave.js is geladen
De file pause.js is geladen
De file play.js is geladen
De file queue.js is geladen
De file resume.js is geladen
De file skip.js is geladen
De file suggestie.js is geladen
De file ticket.js is geladen
Zuidland Bot is online!
(node:15640) DeprecationWarning: Guild#createChannel: Create channels with an options object instead of separate parameters
(node:15640) DeprecationWarning: Collection#find: pass a function instead
(node:15640) UnhandledPromiseRejectionWarning: ReferenceError: channel is not defined
    at Object.module.exports.run (C:\Users\kianv\3D Objects\ZuidlandBot\commands\close.js:11:9)
    at Client.bot.on (C:\Users\kianv\3D Objects\ZuidlandBot\index.js:104:27)
    at Client.emit (events.js:197:13)
    at MessageCreateHandler.handle (C:\Users\kianv\3D Objects\ZuidlandBot\node_modules\discord.js\src\client\websocket\packets\handlers\MessageCreate.js:9:34)
    at WebSocketPacketManager.handle (C:\Users\kianv\3D Objects\ZuidlandBot\node_modules\discord.js\src\client\websocket\packets\WebSocketPacketManager.js:105:65)
    at WebSocketConnection.onPacket (C:\Users\kianv\3D Objects\ZuidlandBot\node_modules\discord.js\src\client\websocket\WebSocketConnection.js:333:35)
    at WebSocketConnection.onMessage (C:\Users\kianv\3D Objects\ZuidlandBot\node_modules\discord.js\src\client\websocket\WebSocketConnection.js:296:17)
    at WebSocket.onMessage (C:\Users\kianv\3D Objects\ZuidlandBot\node_modules\ws\lib\event-target.js:120:16)
    at WebSocket.emit (events.js:197:13)
    at Receiver.receiverOnMessage (C:\Users\kianv\3D Objects\ZuidlandBot\node_modules\ws\lib\websocket.js:789:20)
(node:15640) 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(). (rejection id: 1)
(node:15640) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.