Apex domains cannot have CNAME records.
Question and response
Question
dig crmstyle.com. NS
Answer
crmstyle.com. 5 NS ns-1057.awsdns-04.org.
crmstyle.com. 5 NS ns-981.awsdns-58.net.
crmstyle.com. 5 NS ns-325.awsdns-40.com.
crmstyle.com. 5 NS ns-1776.awsdns-30.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0