new Argo Tunnel has Error 1033

I just created a tunnel with cloudflared. it works perfectly with the randomly generated URL cloudflared provides me.
I want it to be under my domain, so I have ran cloudflared tunnel route dns tunnel_name sub_name.mydomain.com

when I try to access sub_name.mydomain.com, I get Error 1033. The randomly generated URL still works.

Am I doing something wrong on my setup?
I followed this steps: https://developers.cloudflare.com/cloudflare-one/connections/connect-apps/install-and-setup/tunnel-guide/local/
Follow this step-by-step guide to get your first tunnel up and running using the CLI.
Was this page helpful?