Apex domains cannot have CNAME records.
Question and response
Question
dig bellarosa-store.com. NS
Answer
bellarosa-store.com. 5 NS ns-1549.awsdns-01.co.uk.
bellarosa-store.com. 5 NS ns-610.awsdns-12.net.
bellarosa-store.com. 5 NS ns-877.awsdns-45.net.
bellarosa-store.com. 5 NS ns-1379.awsdns-44.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0