Tell me why the newsletter does not work for my bot users?

All users are recorded in bd with their id

const { Telegraf, Markup, Scenes, session } = require('telegraf');
const bot = new Telegraf(process.env.BOT_TOKEN);
const db = require("./database/db-pool");

what I’m trying to do is pull each user from the database and send him a message using the /sendAd command

bot.command('sendAd', async (ctx) => {
    try {
        const conn = await db.getConnection();
        const [rows] = await conn.query('SELECT * FROM users');
        conn.release();
        for (const row of rows) {
            console.log(`Sending a message to a user chatId: ${row.chatId}`);
            await ctx.telegram.sendMessage(row.chatId, 'Your advertising message is here');
        }

        ctx.reply('Advertising sent to all users');
    } catch (error) {
        console.error(error);
        ctx.reply('There was an error sending the ad.');
    }
});

please help me