I can not resolve problem with Prevent Information Disclosure in Defender Pro on Nginx server

I'm using Vultr's cloud servers with Runcloud. The server is hybrid, Apache and Nginx. Accessing Defender Pro > Security Tweaks, there is a problem, which is Prevent Information Disclosure. The solution via Apache with .htaccess file does not work.

And Runcloud has specific management for changes in Nginx, whose link is https://runcloud.io/docs/cheat-sheet/nginx.html#rc-docs-scroll.

I would like to know if you can guide me on how to proceed in Nginx as per Runcloud instructions, as I tried to copy and paste the code generated by Defender Pro to Nginx. Because I tried to copy and paste the code generated by Defender Pro to Nginx, but it did not work. I tried paste the code in /etc/nginx-rc/extra.d/amostra-ralden.location.main.admin-access.conf

And the configuration for Apache also does not work.

Thank you.