Apex domains cannot have CNAME records.
Question and response
Question
dig bnpl247.com. NS
Answer
bnpl247.com. 5 NS ns-1046.awsdns-02.org.
bnpl247.com. 5 NS ns-63.awsdns-07.com.
bnpl247.com. 5 NS ns-824.awsdns-39.net.
bnpl247.com. 5 NS ns-1862.awsdns-40.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0