So, I’m trying to make a discord forums moderating bot. I honestly have no idea how the new discord.js works? Last time i coded a discord bot was like 2 yrs ago and I’m using the same functions as my old bot, but now its not working

Below is my index.js

const { Client, GatewayIntentBits, SlashCommandBuilder, Routes } = require('discord.js');
const { REST } = require('@discordjs/rest');

const TOKEN = 'your-bot-token-here'; // Put your bot token here

const client = new Client({
    intents: [
        GatewayIntentBits.Guilds,
        GatewayIntentBits.GuildMessages,
        GatewayIntentBits.MessageContent,
        GatewayIntentBits.GuildMembers
    ]
});

const commands = [
    new SlashCommandBuilder()
        .setName('modlog')
        .setDescription('Sets the modlog channel')
        .addChannelOption(option => 
            option.setName('channel')
                .setDescription('The channel to log moderation actions')
                .setRequired(true))
]
    .map(command => command.toJSON());

const rest = new REST({ version: '10' }).setToken(TOKEN);

(async () => {
    try {
        console.log('Started refreshing application (/) commands.');

        await rest.put(
            Routes.applicationCommands(client.user.id),
            { body: commands },
        );

        console.log('Successfully reloaded application (/) commands.');
    } catch (error) {
        console.error(error);
    }
})();

let modLogChannelId = null;

client.once('ready', () => {
    console.log(`Logged in as ${client.user.tag}`);
});

client.on('interactionCreate', async interaction => {
    if (!interaction.isCommand()) return;

    const { commandName, options, member } = interaction;

    if (commandName === 'modlog') {
        if (!member.permissions.has('Administrator')) {
            await interaction.reply({ content: 'You do not have permission to use this command.', ephemeral: true });
            return;
        }

        modLogChannelId = options.getChannel('channel').id;
        await interaction.reply(`Moderation log channel set to <#${modLogChannelId}>`);
    }
});

const logAction = async (message) => {
    if (modLogChannelId) {
        const logChannel = await client.channels.fetch(modLogChannelId);
        logChannel.send(message);
    }
};

// Event listeners for forum actions
client.on('threadCreate', thread => {
    if (thread.parent && thread.parent.type === 'GUILD_FORUM') {
        logAction(`Forum created: ${thread.name} by ${thread.owner.user.tag}`);
    }
});

client.on('threadUpdate', (oldThread, newThread) => {
    if (newThread.parent && newThread.parent.type === 'GUILD_FORUM') {
        if (oldThread.archived !== newThread.archived && newThread.archived) {
            logAction(`Forum archived: ${newThread.name} by ${newThread.owner.user.tag}`);
        }
        if (oldThread.locked !== newThread.locked && newThread.locked) {
            logAction(`Forum locked: ${newThread.name} by ${newThread.owner.user.tag}`);
        }
    }
});

client.on('threadDelete', thread => {
    if (thread.parent && thread.parent.type === 'GUILD_FORUM') {
        logAction(`Forum deleted: ${thread.name} by ${thread.owner.user.tag}`);
    }
});

client.login(TOKEN);

When you run this it says, TypeError: cannot read properties of null (reading ‘id’)

at index.js:33:52