Website DNS not resolving. Was resolving over the weekend. Now getting unknown host. No longer pingable

My domain (acb121.club), which I bought last week via Namecheap, is no longer resolving. I had everything setup properly, which was:

• Setup DNS settings to DO servers in Namecheap
• Added all correct entries via DO Network settings

As mentioned, everything was working as expected the entire weekend, I was able to login to my wordpress page and work on my site. Today, I tried access the website, no dice. I never made any changes. I checked all configuration just in case, everything is the same. I’m using virtual host on LAMP (Ubuntu), and the other sites are accessible, but not my new site.

Here is the config for the virtual host file:

<VirtualHost *:80>
        ServerAdmin <redacted>
        ServerName acb121.club
        ServerAlias www.acb121.club
        DocumentRoot /var/www/acb121.club/public_html

        <Directory /var/www/html/>
            Options FollowSymLinks
            AllowOverride All
            Require all granted
        </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log
        CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

I’m really puzzled as I made zero changes over the weekend and now cannot access the site. On DO network config, I verified I have 1 A record (pointing to my droplet), and 3 NS records (ns1-ns3).

Any ideas what can possibly be causing this issue?