Hello,

1. Can you please tell me which words are not translated on the site? I did not find any untranslated words on the site.

2. I have found that you are using the custom layout for the SIngle Product page that is why the theme settings for the single product page is not working. The theme settings only works for the theme default layouts not for the custom layouts. If you want to delete the meta from the single product page then you have to edit the layout which you are using for the single product page and then remove it from there.

Best Regards.