Apex domains cannot have CNAME records.
Question and response
Question
dig kope-lar.org. NS
Answer
kope-lar.org. 5 NS ns-335.awsdns-41.com.
kope-lar.org. 5 NS ns-1293.awsdns-33.org.
kope-lar.org. 5 NS ns-445.awsdns-55.com.
kope-lar.org. 5 NS ns-1614.awsdns-09.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0