ERR_UNHANDLED_REJECTION

[Av1anJay]

When i type create command:

Can i use on raspberry pi or repl.it?

Code:

// Load modules
const Discord = require("discord.js"),
backup = require("discord-backup"),
client = new Discord.Client(),
settings = {
    prefix: "ab=",
    token: "TOKEN"
};

client.on("ready", () => {
    console.log("bot started.");
});

client.on("message", async message => {

    // This reads the first part of your message behind your prefix to see which command you want to use.
    let command = message.content.toLowerCase().slice(settings.prefix.length).split(" ")[0];

    // These are the arguments behind the commands.
    let args = message.content.split(" ").slice(1);

    // If the message does not start with your prefix return.
    // If the user that types a message is a bot account return.
    // If the command comes from DM return.
    if (!message.content.startsWith(settings.prefix) || message.author.bot || !message.guild) return;

    if(command === "create"){
        // Check member permissions
        if(!message.member.hasPermission("ADMINISTRATOR")){
            return message.channel.send(":x: | 你需要是一個管理員來備份！");
        }
        // Create the backup
        backup.create(message.guild, {
            jsonBeautify: true
        }).then((backupData) => {
            // And send informations to the backup owner
            message.author.send("要還原，請執行此指令。")
            message.author.send("`"+settings.prefix+"load "+backupData.id+"`");
            message.channel.send(":white_check_mark: 已完成備份，請查看你的私人訊息。");
        });
    }

    if(command === "load"){
        // Check member permissions
        if(!message.member.hasPermission("ADMINISTRATOR")){
            return message.channel.send(":x: | 你需要是一個管理員來載入備份！");
        }
        let backupID = args[0];
        if(!backupID){
            return message.channel.send(":x: | 你需要輸入一個正確的備份ID！");
        }
        // Fetching the backup to know if it exists
        backup.fetch(backupID).then(async () => {
            // If the backup exists, request for confirmation
            message.channel.send(":warning: | 將會清除所有伺服器內所有內容並載入備份！輸入yes來載入！");
                await message.channel.awaitMessages(m => (m.author.id === message.author.id) && (m.content === "yes"), {
                    max: 1,
                    time: 20000,
                    errors: ["time"]
                }).catch((err) => {
                    // if the author of the commands does not confirm the backup loading
                    return message.channel.send(":x: | 時間已到！載入備份已取消。");
                });
                // When the author of the command has confirmed that he wants to load the backup on his server
                message.author.send(":white_check_mark: | Start loading the backup!");
                // Load the backup
                backup.load(backupID, message.guild).then(() => {
                    // When the backup is loaded, delete them from the server
                    backup.remove(backupID);
                }).catch((err) => {
                    // If an error occurred
                    return message.author.send(":x: | 有什麼地方好像出錯了...請檢查我是否有管理員權限！");
                });
        }).catch((err) => {
            console.log(err);
            // if the backup wasn't found
            return message.channel.send(":x: | 找不到備份 `"+backupID+"`！");
        });
    }

    if(command === "infos"){
        let backupID = args[0];
        if(!backupID){
            return message.channel.send(":x: | 這不是正確的備份ID！");
        }
        // Fetch the backup
        backup.fetch(backupID).then((backupInfos) => {
            const date = new Date(backupInfos.data.createdTimestamp);
            const yyyy = date.getFullYear().toString(), mm = (date.getMonth()+1).toString(), dd = date.getDate().toString();
            const formatedDate = `${yyyy}/${(mm[1]?mm:"0"+mm[0])}/${(dd[1]?dd:"0"+dd[0])}`;
            let embed = new Discord.MessageEmbed()
                .setAuthor("備份資訊")
                // Display the backup ID
                .addField("備份ID", backupInfos.id, false)
                // Displays the server from which this backup comes
                .addField("伺服器ID", backupInfos.data.guildID, false)
                // Display the size (in mb) of the backup
                .addField("檔案大小", `${backupInfos.size} kb`, false)
                // Display when the backup was created
                .addField("創建日期", formatedDate, false)
                .setColor("#FF0000");
            message.channel.send(embed);
        }).catch((err) => {
            // if the backup wasn't found
            return message.channel.send(":x: | 找不到備份 `"+backupID+"`!");
        });
    }

});

//Your secret token to log the bot in. (never share this to anyone!)
client.login(settings.token);