The domain points to cloudflare ips. Which is signs that the ns servers are well configured.
But on cloudflare, you need to add an A record on the subdomain : forum(.rankerprobot.com), with the ip of the digitalocean droplet as a target.

The domain points to cloudflare ips. Which is signs that the ns servers are well configured.
But on cloudflare, you need to add an A record on the subdomain : forum(.rankerprobot.com), with the ip of the digitalocean droplet as a target.
