Apex domains cannot have CNAME records.
Question and response
Question
dig yjyj012.shop. NS
Answer
yjyj012.shop. 5 NS ns-489.awsdns-61.com.
yjyj012.shop. 5 NS ns-1756.awsdns-27.co.uk.
yjyj012.shop. 5 NS ns-1187.awsdns-20.org.
yjyj012.shop. 5 NS ns-1005.awsdns-61.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0