How did you install the new version? What commands did you run? Can you tell me? You can check if there is a complete po language file in /usr/share/awstats/lang. Right now, Awstats mainly relies on it to display the corresponding language text content. Everything is working fine, it’s just missing the language file, so it’s showing the translation keys.
Because Hestia’s update defaults to using the old AWSTATS version from the official repository! Upgrading will overwrite the new AWSTATS configuration and cause some files to be removed.