TypeError: Cannot read properties of null (reading 'image')

I am making an e-commerce website & I have no idea why I am getting this type error. I am trying to retrieve items from the cart that I stored in the local Storage but the items are coming back null. I've built this app multiple times for practice & I never had this problem in the past so I'm a little confused.

CartScreen.js

import {getCartItems} from "../localStorage";

const CartScreen = {
    render: async () => {
        const cartItems = getCartItems();
        return `
            ${
                cartItems.countInStock === 0
                ? `<div>Nothing is here <a href="/#/">Go Shopping</a></div>`
                : cartItems.map((item) => `
                    <li>
                        <div class="cart-image">
                            <img src="${item.image}"/>
                        </div>
                        <div class="cart-name">
                            <div>
                                <a href="#/product/${item.product}">
                                    ${item.name}
                                </a>
                            </div>
                            <div>
                                <select class="qty-select" id="${item.product}">
                                    <option value="1">1</option>
                                </select>
                                <button class="fw primary" id="${item.product}">
                                    Delete
                                </button>
                            </div>
                        </div>
                        <div class="cart-price">
                            ${item.price}
                        </div>
                    </li>
                `).join('\n')
            }
                   
        `
    }
}

I know the problem is coming from the cartItems variable but when I console.log() it I get this:

As you can see it says there are 5 items in the cart but they are all null, Which is strange because yesterday they weren't, now all of a sudden they are null.

Here is my localStorage.js:

export const getCartItems = () => {
    const cartItems = localStorage.getItem('cartItems') ?
    JSON.parse(localStorage.getItem('cartItems')) : [];
    return cartItems;
}

export const setCartItems = (cartItems) => {
    localStorage.setItem('cartItems', JSON.stringify(cartItems));
}

Does anyone know what's going on here? A little help would appreciated

You can do either check the CartItems is correctly stored in localstorage or retrieve correctly.

If everything is okay, then clearing the localstorage,session,cookies sometimes work and save lot of time. Even switching to new Incognito Window (private window) is helpful. Thank you!