[users@httpd] help with subdomains

[Paxton Houston]

i run a website and the easiest way to update it is through a file manager
i added. the issue is that the file manager only works through http, not
https. https on that subdomain does exist, but it's just the main website.
is there any way i can fix this? (btw, the file manager i'm using is called
copyparty: https://github.com/9001/copyparty/ )