Apex domains cannot have CNAME records.
Question and response
Question
dig dataclub.lv. NS
Answer
dataclub.lv. 5 NS ns2.dataclub.lv.
dataclub.lv. 5 NS ns1.dataclub.lv.
dataclub.lv. 5 NS ns3.dataclub.lv.
Authority
The response has no authority records.
Additional
ns1.dataclub.lv. 5 A 46.183.216.16
ns2.dataclub.lv. 5 A 185.29.8.16
ns3.dataclub.lv. 5 A 84.38.135.55
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0