Nginx with Hugo - Divisions by zero

Hi, beginer here. Im currently trying to make a static website using Nginx and Hugo https://mydomain.com [https://mydomain.com] works but when I open https://mydomain.com/posts/ [https://mydomain.com/posts/] or https://zesfca.com/about/ [https://zesfca.com/about/] Nginx gives me a 404 not found. Thank you very much!