Apex domains cannot have CNAME records.
Question and response
Question
dig CENTRTVORCHESTVA.ru. NS
Answer
centrtvorchestva.ru. 3 NS crystal.ns.cloudflare.com.
centrtvorchestva.ru. 3 NS jaxson.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0