Missed SSL certificate during initial install

I am using ec2 instance of ubuntu 18.04 and the versions of my ghost is:-

  • Ghost-CLI version: 1.17.3
  • Ghost version: 4.12.1
    I configured the setup using the official docs
  • Node Version: v14.17.5.
  • Database: my_sql
  • Browser: Safari

During the initial install when it asked if I wanted SSL certificate I typed no cause before it had given me some errors and was unable to make an SSL certificate. Now I wish to setup the the SSL certificate. Mine blog is https://www.thinkbrew.in/
I created the ssl certificate for https://www.thinkbrew.in but am unable to create for http://thinkbrew.in.

I ran the command

ghost config url http://thinkbrew.in
ghost setup nginx ssl

I got the result:

  • Nginx configuration already found for this url. Skipping Nginx setup.
    :information_source: Setting up Nginx [skipped]
  • Nginx setup task was skipped, skipping SSL setup
    :information_source: Setting up SSL [skipped]

Hi, I have the same problem, how do you resolved the problem?