チャプターの取得に失敗しました

Client error '429 Too Many Requests' for url 'https://klz9.com/api/manga/slug/keikoku-akujo-no-yarinaoshi-oujotan-kishi-danchou-ga-bukiyou-de-hanaremasen' For more information check: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/429