Can't connect to my mineos minecraft server

i can’t connect to my NineOS Minecraft server and it’s on proxmox on a VM and I did and that did not help can someone help me.

Assuming you are going to https:// -site address-/8443?
What do you get for an error message?

yes I’m using the WebUI and it said the IP to join the Minecraft server but it says can’t connect to the server on the Minecraft launcher

I’m keep getting this when I try to join the server and the IP is from hamachi