Cannot read property 'appendChild' of null или Мороженое. Возвращение»

Курсы JavaScript в браузере
1

var makeElement = function(tegName, className, text) {
var element = document.createElement(tegName);
element.classList.add(className);
if(text) {
element.textContent = text;
}
return element;
}

var makeCard = function(data) {
let info = data;
let card = makeElement(‘li’, ‘good’);

if (info.inStock) {
  card.classList.add('good--available');

} else {
card.classList.add(‘good–unavailable’);
}

let title = makeElement('h2', 'good__description', info.text);
card.appendChild(title);

let picture = makeElement('img', 'good__image');
picture.src = info.imgUrl;
picture.alt = info.text;
card.appendChild(picture);

let price = makeElement('p', 'good__price', info.price + '₽/кг');
card.appendChild(price);

if(info.isHit) {
  card.classList.add('good--hit');
  let specialOffer = makeElement('p', 'good__special-offer', info.specialOffer);
  card.appendChild(specialOffer);
}

return card;

}

var renderCards = function(data) {
var cards = document.querySelector(‘goods’);
for (let i = 0; i < data.length; i++) {
let card = makeCard(data[i]);
cards.appendChild(card);
}
}

renderCards(cardsData);