Domain name SSL wordpress droplet

Hello,

I have been struggling for the past 2 days to fix this problem. I have read countless forum answers (DO and others) and I can’t figure it out.

TLDR: I can’t use my domain name (stairway.ma) in my DigitalOcean Wordpress droplet.

• Domain name provider: Capconnect.com (I need a .ma domain)DNS settings 1, DNS settings 2 (idk why it has 2 settings btw).

• DigitalOcean droplet: Ubuntu WordPress 5.8 on Ubuntu 20.04 (IP: 64.227.33.133)

• DigitalOcean DNS records.

• DNS checker points stairway.ma to the right IP.

• DigitalOcean SSL pointing to domain name stairway.ma

• When works both URLs point to 64.227.33.133, it works.

• When I change both URLs to http://stairway.ma, it says the site is not secure, and only http://stairway.ma works (and not www.stairway.ma)

• when I change the URL to https://stairway.ma, nothing works, the whole website is down.

I’ve probably created and destroyed a dozen droplets since yesterday:

• During the wordpress console installation, I tried adding ‘stairway.ma’ as a domain name and add SSL, but it won’t work, it says there’s some firewall problem and I can’t access the website.
• I tried disabling the firewalls in another installation but it still won’t work.
• I tried starting a new droplet and using the droplet’s IP as the domain name, it worked, but when I try changing the domain to stairway.ma, the whole thing goes down.
• I tried adding this to wp-config:

 define('WP_SITEURL', 'http://stairway.ma');
 define('WP_HOME', 'http://stairway.ma');

but it doesn’t work.

• I tried another wp-config edit with https://stairway.ma, but it won’t work.

Any ideas? I would appreciate any help and thank you in advance for your time.