Server not showing on Direct Connect

Hi guys! I have a FiveM server on a VPS and it’s not showing on the Direct Connect menu. Could someone help me? There’s no errors…Screenshot_5

Is your firewall port open?

How do I do it?

Are you running windows or Linux?

Linux Debian 9.04

And what firewall software?

What por should i use.

port? just default one? 30120

I’m using this: ufw allow OpenSSH… How should i open a port?

ufw allow 30120