Apex domains cannot have CNAME records.
Question and response
Question
dig halloweencostumediscountstore.com. NS
Answer
halloweencostumediscountstore.com. 5 NS ns-1169.awsdns-18.org.
halloweencostumediscountstore.com. 5 NS ns-1679.awsdns-17.co.uk.
halloweencostumediscountstore.com. 5 NS ns-260.awsdns-32.com.
halloweencostumediscountstore.com. 5 NS ns-451.awsdns-56.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0