I hope you are well today and thank you for your questions.
1. How do i change ˝Read more˝ button to Slovenian language ˝Preberi več˝.
3. How to correct the translation. It should be written Oddaj Komentar and not Dodaj odgovor.
You can translate the theme as described on the below page.
2. How do I erase No comments in the Post apperal. Of if a could translate it to Slovenian language. It should be written ˝Ni Komentarjev˝.
You can try removing this by adding the following CSS code in the Custom CSS option of your theme on the below path.
Admin Area -> Appearance -> Customize -> Travelify Other Options