I get the error DNS problem: NXDOMAIN looking up A for traefik.costwold.cloud - check that a DNS record exists for this domain.
But when cheking DNS records everything is fine? Also, there is no other process blocking port 80.
What else should I be looking at to resolve this?
I'm using this guide to set up Docker, Traefik & Portainer - Docker container management with Traefik v2 and Portainer