Apex domains cannot have CNAME records.
Question and response
Question
dig mipadoweb.ro. NS
Answer
mipadoweb.ro. 5 NS ns2.hosterion.net.
mipadoweb.ro. 5 NS ns1.hosterion.com.
mipadoweb.ro. 5 NS ns1.hosterion.net.
mipadoweb.ro. 5 NS ns2.hosterion.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0