Apex domains cannot have CNAME records.
Question and response
Question
dig faculdadegospel.org. NS
Answer
faculdadegospel.org. 5 NS ns-647.awsdns-16.net.
faculdadegospel.org. 5 NS ns-874.awsdns-45.net.
faculdadegospel.org. 5 NS ns-1360.awsdns-42.org.
faculdadegospel.org. 5 NS ns-121.awsdns-15.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0