Single post not fully translated in German

I have noticed that for single posts, the German translation appears to be incomplete: the links “previous” and “next” remain in English, as well as the comment heading “# thoughts on ‘…’”. This looks a bit unprofessional on my website at the moment, for example on https://sanremo-festival.de/2023/02/05/zweifel-an-den-sanremo-jurys/. Can this be fixed somewhere?