Problems with Cloudflare Tunnel

What is the name of the domain?

mc.zyqmc.dpdns.org

What is the issue you’re encountering

can’t access the tunnel

What steps have you taken to resolve the issue?

I want to set up a tunnel that purely uses TCP transmission.I found out that cloudflared doesn’t work anymore, and the previous access policy group is also invalid. Now I downloaded cloudflare one client, but I still can’t use the tunnel. I used TCP in the config file, and the tunnel looks healthy on the website.