I got it working by reseting the archive path and a fresh .htaccess file . Frankly, I have no idea why it wasn’t in the first place, but here is the new content of my .htaccess:
Options +FollowSymLinks
ErrorDocument 404 /404.html
RewriteEngine On
RewriteBase /
RewriteRule ^archives/category/(.*)/(feed|rdf|rss|rss2|atom)/?$ /wp-feed.php?category_name=$1&feed=$2§ion=1 [QSA]
RewriteRule ^archives/category/?(.*) /index.php?category_name=$1§ion=1 [QSA]
RewriteRule ^archives/author/(.*)/(feed|rdf|rss|rss2|atom)/?$ /wp-feed.php?author_name=$1&feed=$2§ion=1 [QSA]
RewriteRule ^archives/author/?(.*) /index.php?author_name=$1§ion=1 [QSA]
RewriteRule ^archives/([0-9]{4})?/?([0-9]{1,2})?/?([0-9]{1,2})?/?([_0-9a-z-]+)?/?([0-9]+)?/?$ /index.php?year=$1&monthnum=$2&day=$3&name=$4&page=$5§ion=1 [QSA]
RewriteRule ^archives/([0-9]{4})/([0-9]{1,2})/([0-9]{1,2})/([_0-9a-z-]+)/(feed|rdf|rss|rss2|atom)/?$ /wp-feed.php?year=$1&monthnum=$2&day=$3&name=$4&feed=$5§ion=1 [QSA]
RewriteRule ^archives/([0-9]{4})/([0-9]{1,2})/([0-9]{1,2})/([_0-9a-z-]+)/trackback/?$ /wp-trackback.php?year=$1&monthnum=$2&day=$3&name=$4§ion=1 [QSA]
RewriteRule ^feed/?([_0-9a-z-]+)?/?$ /wp-feed.php?feed=$1§ion=1 [QSA]
RewriteRule ^comments/feed/?([_0-9a-z-]+)?/?$ /wp-feed.php?feed=$1&withcomments=1§ion=1 [QSA]