Apex domains cannot have CNAME records.
Question and response
Question
dig modicagroup.com. NS
Answer
modicagroup.com. 5 NS ns-99.awsdns-12.com.
modicagroup.com. 5 NS ns-832.awsdns-40.net.
modicagroup.com. 5 NS ns-1158.awsdns-16.org.
modicagroup.com. 5 NS ns-2044.awsdns-63.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0