Apex domains cannot have CNAME records.
Question and response
Question
dig hostelsnovayork.com. NS
Answer
hostelsnovayork.com. 2 NS ns-280.awsdns-35.com.
hostelsnovayork.com. 2 NS ns-642.awsdns-16.net.
hostelsnovayork.com. 2 NS ns-390.awsdns-48.com.
hostelsnovayork.com. 2 NS ns-289.awsdns-36.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0