Cannot change profile settings in roundcube (error 600)

J'ai trouvé pour roundcube : [21-Mar-2024 09:35:59 +0100]: <552bd64e> PHP Error: Enigma plugin: Keys directory isn't writeable: /srv/mailboxes/gpg-keys in /srv/roundcube/plugins/enigma/lib/enigma_engine.php on line 91 (GET /?_task=settings&_action=edit-identity&_iid=1&_framed=1)

ls -alh /srv/mailboxes/ drwxrwx--- 2 xfs mailboxes 4.0K Mar 11 22:23 gpg-keys

il faut passer en www-data le dossier gpg-keys dans /srv/mailboxes