Error Too many connections with Drizzle + MySQL2

import { drizzle } from "drizzle-orm/mysql2";
import mysql from "mysql2/promise";
import * as schema from "./schema";

const poolConnection = mysql.createPool({
    host: "localhost",
    user: "root",
    database: "nextjs",
});

const db = drizzle(poolConnection);

export { db, schema };