nvm, the issue could be solved by just adding 4567 to the url, forget what I said below
I couldn't configure nginx, so I used Apache instead (after purging and autoremoving nginx).
As I understand, now my url (without port number) should be forwarded to port 4567. However, when I visited that url, I received this message
"Welcome to nginx on Debian!
If you see this page, the nginx web server is successfully installed and working on Debian. Further configuration is required.
For online documentation and support please refer to nginx.org
Please use the reportbug tool to report bugs in the nginx package with Debian. However, check existing bug reports before reporting a new bug.
Thank you for using debian and nginx."
That's very strange because I believe I have purged nginx.
Emoji still doesn't load on my website.