Cname Already exist

Hello everyone ive seem to be having an issue.

So ive added my first domain from Porkbun and created a tunnel and it works well
links.jaylab.net

I have a second domain and I want to point to to a service within my home but I get an error .

> Error: [An A, AAAA, or CNAME record with that host already exists](https://community.cloudflare.com/search?expanded=true&q=An%20A%2C%20AAAA%2C%20or%20CNAME%20record%20with%20that%20host%20already%20exists). For more details, refer to https://developers.cloudflare.com/dns/manage-dns-records/troubleshooting/records-with-same-name/.

unless a host with a subdomain radio.consolacast.xyx
is added then it works.

images:

Can someone shine a light on what I could be wrong I dont know how I could fix it.