Apex domains cannot have CNAME records.
Question and response
Question
dig partycoty.com. NS
Answer
partycoty.com. 3 NS ns-1112.awsdns-11.org.
partycoty.com. 3 NS ns-1484.awsdns-57.org.
partycoty.com. 3 NS ns-1662.awsdns-15.co.uk.
partycoty.com. 3 NS ns-1068.awsdns-05.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0