problem with comments

When you go to my site https://memento–mori.org everything works fine. The comments link (right at the beginning of the post) is there, but when you click on previous at the bottom this post doesnt have a link to comments anymore. Same goes if you click next on that post.
Why is it doing that? Or better: not doing it?
P.S. yeah I know that you can see the comments form when you click previous underneath the post. I wanted it that way.