Apex domains cannot have CNAME records.
Question and response
Question
dig itpayscloud.eu. NS
Answer
itpayscloud.eu. 5 NS b.ns.itpayscloud.org.
itpayscloud.eu. 5 NS a.ns.itpayscloud.com.
itpayscloud.eu. 5 NS d.ns.itpayscloud.no.
itpayscloud.eu. 5 NS c.ns.itpayscloud.eu.
Authority
The response has no authority records.
Additional
a.ns.itpayscloud.com. 5 A 193.107.31.190
b.ns.itpayscloud.org. 5 A 193.107.31.191
c.ns.itpayscloud.eu. 5 A 176.58.121.46
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0