Prestashop has estonian, is open source and has over 500 strings to translate https://crowdin.com/project/prestashop-official/et#
see someone did chinese you need to make a post like this
https://utopian.io/utopian-io/@susanli3769/translation-of-prestashop-from-english-to-chinese-simplified-part-1-1-957-words-translated