Apex domains cannot have CNAME records.
Question and response
Question
dig adventuresinparadisenz.com. NS
Answer
adventuresinparadisenz.com. 5 NS ns-1468.awsdns-55.org.
adventuresinparadisenz.com. 5 NS ns-1928.awsdns-49.co.uk.
adventuresinparadisenz.com. 5 NS ns-208.awsdns-26.com.
adventuresinparadisenz.com. 5 NS ns-761.awsdns-31.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0