Apex domains cannot have CNAME records.
Question and response
Question
dig regalosparafiestas.com. NS
Answer
regalosparafiestas.com. 4 NS ns1.regalosparafiestas.com.
regalosparafiestas.com. 4 NS ns2.regalosparafiestas.com.
Authority
The response has no authority records.
Additional
ns1.regalosparafiestas.com. 4 A 170.130.225.6
ns2.regalosparafiestas.com. 4 A 23.254.209.75
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0