Apex domains cannot have CNAME records.
Question and response
Question
dig cozumelbeachhouse.com. NS
Answer
cozumelbeachhouse.com. 5 NS ns-186.awsdns-23.com.
cozumelbeachhouse.com. 5 NS ns-880.awsdns-46.net.
cozumelbeachhouse.com. 5 NS ns-1311.awsdns-35.org.
cozumelbeachhouse.com. 5 NS ns-1579.awsdns-05.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0