Apex domains cannot have CNAME records.
Question and response
Question
dig fenovila.com. NS
Answer
fenovila.com. 5 NS ns-1833.awsdns-37.co.uk.
fenovila.com. 5 NS ns-203.awsdns-25.com.
fenovila.com. 5 NS ns-720.awsdns-26.net.
fenovila.com. 5 NS ns-1881.awsdns-43.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0