Apex domains cannot have CNAME records.
Question and response
Question
dig saboungiconstructionfl.com. NS
Answer
saboungiconstructionfl.com. 5 NS ns-1595.awsdns-07.co.uk.
saboungiconstructionfl.com. 5 NS ns-1398.awsdns-46.org.
saboungiconstructionfl.com. 5 NS ns-71.awsdns-08.com.
saboungiconstructionfl.com. 5 NS ns-1142.awsdns-14.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0