I’ve an error in my react-project(I’m doing an amazon-clone)

ERROR
undefined is not iterable (cannot read property Symbol(Symbol.iterator))
TypeError: undefined is not iterable (cannot read property Symbol(Symbol.iterator))
at Header (http://localhost:3000/static/js/bundle.js:400:18)
at renderWithHooks (http://localhost:3000/static/js/bundle.js:35333:22)
at mountIndeterminateComponent (http://localhost:3000/static/js/bundle.js:38619:17)

This is my header.js

import React from "react";
import "./Header.css";
import ShoppingBasketIcon from "@mui/icons-material/ShoppingBasket";
import StorefrontIcon from "@mui/icons-material/Storefront";
import SearchIcon from "@mui/icons-material/Search";
import { Link } from "react-router-dom";
import { useStateValue } from "./StateProvider";
function Header() {
  const [{ basket }, dispatch] = useStateValue();
  return (
    <div className="header">
      <Link to="/" style={{ textDecoration: "none" }}>
        <div className="header_logo">
          <StorefrontIcon className="header_logoImage" fontSize="large" />
          <h2 className="header_logoTitle">eShop</h2>
        </div>
      </Link>
      <div className="header_search">
        <input type="text" className="header_searchInput" />
        <SearchIcon className="header_searchIcon" />
      </div>
      <div className="header_nav">
        <div className="nav_item">
          <span className="nav_itemLineOne">Hello Guest</span>
          <span className="nav_itemLineTwo">Sign In</span>
        </div>
        <div className="nav_item">
          <span className="nav_itemLineOne">Your</span>
          <span className="nav_itemLineTwo">Shop</span>
        </div>
        <Link to="/checkout" style={{ textDecoration: "none" }}>
          <div className="nav_itemBasket">
            <ShoppingBasketIcon />
            <span className="nav_iteminTwo nav_basketCount">
              {basket.length}
            </span>
          </div>
        </Link>
      </div>
    </div>
  );
}
export default Header;

This is my project on github

I’ve tried to install the latest versions of react-dom and etc, cause I’m watchin a tutorial how to create an amazon-clone and I did the same things like in tutorial, but my code doesn’t work