Apex domains cannot have CNAME records.
Question and response
Question
dig zgameappx.shop. NS
Answer
zgameappx.shop. 5 NS ingrid.ns.cloudflare.com.
zgameappx.shop. 5 NS toby.ns.cloudflare.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0