Dear Moodlers,
There are 212 language packs available for Moodle. Translating the Moodle interface is done on a voluntary basis by Moodle community members, Moodle partners, Moodle enthusiasts etc. The lead of every language pack is the language pack maintainer, who checks every contribution to the language pack and releases it to the world. Very often, language pack maintainers do a lot if not most of the translation work themselves.
This year I have tried to contact language pack maintainers who seemed to have left. This is normal - people move on with their lives, interests and things to spend time on change. But it's nice if it is clear for everyone if a language pack is not maintained any more.
So it's clear now.
Check your language on https://lang.moodle.org/local/amos/credits.php. If it is not maintained, read https://docs.moodle.org/en/Maintaining_a_language_pack and if you feel like it is something you would like to do, send me a message and improve the translation you need.
Kind regards
Koen