Apex domains cannot have CNAME records.
Question and response
Question
dig treasure-files.com. NS
Answer
treasure-files.com. 5 NS ns-1263.awsdns-29.org.
treasure-files.com. 5 NS ns-1374.awsdns-43.org.
treasure-files.com. 5 NS ns-500.awsdns-62.com.
treasure-files.com. 5 NS ns-584.awsdns-09.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0