What is the name of the domain?
i accidentally deleted my domain and cannot recover it
May I ask if you’ve “deleted” it from your CF account, or rather from Cloudflare Registrar? (somehow)
Have you got access to that particular CF account where domain was?
If you removed your zone from your CF account, you can try to re-add it back.
However, you’d have to add the DNS records again and configure everything else as it was.
Only thing which comes to my mind is to check Audit Log for help of the recover. I am afraid Cloudflare cannot do it for you.