i got this error when trying to upload an image using multer. this is my fileStorage settings:

const fileStorage = multer.diskStorage({
  destination: (req, file, cb) => {
    cb(null, 'images');
  },
  filename: (req, file, cb) => {
    cb(null, new Date().toISOString() + '-' + file.originalname);
  }
});

and this is the middleware of multer

app.use(
  multer({ storage: fileStorage, fileFilter: fileFilter }).single('image')
);