Apex domains cannot have CNAME records.
Question and response
Question
dig centroculturalpopular.net.do. NS
Answer
centroculturalpopular.net.do. 5 NS ns-1893.awsdns-44.co.uk.
centroculturalpopular.net.do. 5 NS ns-1011.awsdns-62.net.
centroculturalpopular.net.do. 5 NS ns-22.awsdns-02.com.
centroculturalpopular.net.do. 5 NS ns-1413.awsdns-48.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0