Discord.js@13.8.0 Banner Changer

index.js

const   { Client, Intents, MessageEmbed, MessageActionRow, MessageButton } = require('discord.js'),
        client = new Client({ intents: [Intents.FLAGS.GUILDS ] }),
        fs = require('fs');

client.login("your bot token")
  .then(() => {
      client.db = require('quick.db'); // quick.db@^7.1.3
      timeout1h();
  });

async function timeout1h() {
    setTimeout(timeout1h, 1000 * 60 * 60);
  
    const date = new Date();
    const   lastHour = client.db.get(`banner.last.hour`) ?? 0,
            lastName = client.db.get(`banner.last.name`) ?? `meme1.png`;
    if (lastHour != date.getHours()) {
        client.db.set(`banner.last.hour`, date.getHours());
        client.guilds.fetch("any guild_id")
            .then((guild) => {
                if (guild.premiumSubscriptionCount >= 7) {
                    let files = fs.readdirSync('./banners/')
                    let randomFile = files[Math.floor(Math.random() * files.length)],
                        nextFileByName = files[0],
                        found = files.findIndex((el) => { return el == lastName; });
                    
                    if (found == -1) nextFileByName = `meme1.png`;
                    if (found < files.length - 1) nextFileByName = files[found + 1];
                    if (found === files.length - 1) nextFileByName = files[0];
                    client.db.set(`banner.last.name`, nextFileByName);

                    guild.setBanner(`./banners/${nextFileByName}`)
                        .then((updated) => {
                            // do nothing
                        })
                        .catch(console.log);
                }
            }).catch(console.log);
    }
}