my NS is what cloudflare have given to me than also in cloudflare it says to assign NS

chaik@ash:~$ whois ruthlessrealms.fun
Domain Name: RUTHLESSREALMS.FUN
Domain Status: serverHold https://icann.org/epp#serverHold

The malicious/phishing URL - https://verify.ruthlessrealms.fun/ .

1. Ensure whatever you are hosting on the verify subdomain wasn't hacked/malicious, if unsure I would remove it entirely
2. then you could go through that report-abuse form which also allows you to unsuspend a domain, or you could go through your registrar which would probably do the same steps on your behalf