Apex domains cannot have CNAME records.
Question and response
Question
dig couleursportproductions.com. NS
Answer
couleursportproductions.com. 5 NS ns-1671.awsdns-16.co.uk.
couleursportproductions.com. 5 NS ns-1718.awsdns-22.co.uk.
couleursportproductions.com. 5 NS ns-574.awsdns-07.net.
couleursportproductions.com. 5 NS ns-782.awsdns-33.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0