Connection refused. Unable to reach the origin service

trying to setup Cloudflare tunnels (again) and this error pops up when I try to connect using the domain name.

**ERR** Request failed error="Unable to reach the origin service. The service may be down or it may not be responding to traffic from cloudflared: dial tcp connect: connection refused" connIndex=1 dest= event=0 ip= type=http

I can share more information if needed