Me sale ese error, a que se debe? <code>home.js:119 Uncaught (in promise) TypeError: Cannot read property 'append' of null at home.js...

Me sale ese error, a que se debe?

home.js:119 Uncaught (in promise) TypeError: Cannot read property 'append' of null
    at home.js:119
    at Array.forEach (<anonymous>)
    at load (home.js:115)
(anonymous) @ home.js:119
load @ home.js:115
async function (async)
load @ home.js:81
(anonymous) @ home.js:149```

const $actionContainer = document.querySelector(‘action’);

actionList.data.movies.forEach((movie) => {

const HTMLString = videoItemTemplate(movie);

const html = document.implementation.createHTMLDocument();

html.body.innerHTML = HTMLString;

$actionContainer.append(html.body.children[0]);

console.log(HTMLString);

})```