javascript エラー「Uncaught DOMException: Failed to execute ‘replace’ on ‘DOMTokenList’: The token provided (‘xxx yyy’) contains HTML space characters, which are not valid in tokens.」の解決方法

<div id="sample" class="aaa bbb"></div>

<script>

document.getElementById("sample").classList.replace("aaa bbb", "ccc eee");

</script>

Uncaught DOMException: Failed to execute 'replace' on 'DOMTokenList': The token provided ('aaa bbb') contains HTML space characters, which are not valid in tokens.

Uncaught DOMException: String contains an invalid character

InvalidCharacterError: The string contains invalid characters.

<div id="sample" class="aaa bbb"></div>

<script>

let el = document.getElementById("sample")

el.className = el.className.replace("aaa bbb", "ccc eee");

</script>