Apex domains cannot have CNAME records.
Question and response
Question
dig boutique-onepiece.net. NS
Answer
boutique-onepiece.net. 5 NS ns2.boutique-onepiece.net.
boutique-onepiece.net. 5 NS ns1.boutique-onepiece.net.
Authority
The response has no authority records.
Additional
ns1.boutique-onepiece.net. 5 A 86.111.188.92
ns2.boutique-onepiece.net. 5 A 185.9.157.51
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0