Known Error in Application Vault is not fixed: Changing the default language in phpBB does not take effect. Language (german in this case) is installed and selectable. Even changing default language in the database does not function. I have to edit /forumdir/includes/functions.php, search for "default_lang" and change "english" to "german". Why not installing major languagepacks with application vault and setting default language automaticly like plesk default? Suggestion for further versions: Changing default webmail (horde) to some better, easier and more comfortable webmailer like openwebmail or add openwebmail to application vault.