I stumbled upon this error on production build on vercel:

[Error: ENOENT: no such file or directory, open '/var/task/node_modules/idn-area-data/data/regencies.csv'] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'open',
  path: '/var/task/node_modules/idn-area-data/data/regencies.csv'
}

so im using this package https://www.npmjs.com/package/idn-area-data.
on api route,

import { type Regency } from "idn-area-data";
import type { NextApiRequest, NextApiResponse } from "next";

type ResponseData = {
  data: Regency[];
};

export default async function handler(
  req: NextApiRequest,
  res: NextApiResponse<ResponseData>
) {
  const { getRegencies } = await import("idn-area-data");

  const regencies = await getRegencies({ transform: true });
  res.status(200).json({ data: regencies });
}

im using pages folder on this project.
on dev it return the data, but on vercel i got that error. anyone know how to solve the error?