I see error 1014 at least on bbc4fun.com, while www seems to have some other issue 522 error
Double-check and make sure to switch the proxied to unproxied (DNS-only).
You’ll have to ask whoever is hosting that target for clarification as you’re using a CNAME records that points to a Cloudflare account already, which as 1014 error explains is not allowed to host external CNAMEs.
Seems like you’re using some 3rd-party service which is on Cloudflare.