We provide translation files for the theme, but it is not full translation, read here -https://xstore.helpscoutdocs.com/article/30-base-theme-translation
Xstore Core plugin should be translated manually.
Do you want to create a multilingual site or just translate it to your require language.
If you still facing any issue let us know or send us highlighted screenshots along with your website URL and temporary wp admin access so that we will check your issue.
