Subdomain Only 3 Active

Hello, anyone can help me?
I have a problem with DNS setting, previous I’m arealdy add CNAME for my subdomain, and I have 4 subdomain active on previous registrar.

But, now after I change NS to cloudflare only 3 subdomain can I active. Please anyone know give me solution. I use free plan and sorry because my english bad.
Thank you.

What’s the inactive subdomain?

Sometimes Cloudflare does not copy all of your DNS records. If one is missing, you have to add it yourself.