Could not decode base64 error when upload images - node.js

Question

I am building Ecommerce in the MERN stack. Products can have multiple images. I use cloudinary to upload images. When I upload more pictures (slightly larger pictures) I get an error Could not decode base64 error.
This is my createProduct controller:
export const createProduct = async (req, res) => {
const { name, description, price, color, size, quantity, category } =
req.body;
let images = [];
if (typeof req.body.images === 'string') {
images.push(req.body.images);
} else {
images = req.body.images;
}
const imagesLinks = [];
for (let i = 0; i < images.length; i++) {
const result = await cloudinary.v2.uploader.upload(images[i], {
folder: 'products',
});
imagesLinks.push({
public_id: result.public_id,
url: result.secure_url,
});
}
req.body.images = imagesLinks;
const newProduct = new Product({
name,
description,
quantity,
images: imagesLinks,
price,
color: JSON.parse(color),
size: JSON.parse(size),
category,
user: req.user.userId,
});
const product = await newProduct.save();
res.status(StatusCodes.CREATED).json({ product });
};
When I upload smaller images, I don't get an error and everything works great. Is there a solution to this problem, something like reducing the image size when uploading, changing it to webp format so that it takes up less space, or something similar?