If you need to access your achive title and or description, you can the code below. I used it to take the description as meta description. A better policy would be to write a custom metadesciption. But that’s a quick fix while you are working on a better solution.
$title=get_the_archive_title();
echo(explode('<',explode('>',$title)[1])[0]);
if(get_the_archive_description()){
echo '<meta name="description" content="'.preg_replace('/\<.*\>/',' ',get_the_archive_description()).'">';
}