ENOENT: no such file or directory, open uploads

I want to upload pictures to my nodejs app which has been hosted on netlify, it work on the local environment but after hosting on netlify it seems it can't locate the uploads folder to put the file there...

Upload code

const multer = require("multer");
const path = require("path");

let storage = multer.diskStorage({
 destination: (req, file, cb) => {
   cb(null, "./uploads");
 },
 filename: (req, file, cb) => {
   let pathname = path.extname(file.originalname);
   cb(null, Date.now() + pathname);
 },
});

let upload = multer({
 storage: storage,
 fileFilter: (req, file, cb) => {
   if (file.mimetype === "image/png" || file.mimetype === "image/jpg") {
     console.log("ok");
     cb(null, true);
   } else {
     console.log("Jpg and png only");
     cb(null, false);
   }
 },
 limits: { fileSize: 1024 * 1024 * 2 },
});


module.exports = upload

route

productRouter
  .route("/")
  .post(upload.single("image"), addProduct);