My port 443 cannot be open in Debian 12

I have tried some solutions on the internet like this one:
https://serverfault.com/a/826245

I use ufw too:

sudo ufw status
Status: active

To Action From
-- ------ ----
2501/tcp ALLOW Anywhere
80/tcp ALLOW Anywhere
443/tcp ALLOW Anywhere
2501/tcp (v6) ALLOW Anywhere (v6)
80/tcp (v6) ALLOW Anywhere (v6)
443/tcp (v6) ALLOW Anywhere (v6)

Here is my nmap result:

nmap -p80,443 127.0.0.1
Starting Nmap 7.93 ( https://nmap.org ) at 2024-06-27 12:43 WIB
Nmap scan report for localhost (127.0.0.1)
Host is up (0.00012s latency).

PORT STATE SERVICE
80/tcp open http
443/tcp closed https

Nmap done: 1 IP address (1 host up) scanned in 0.04 seconds