Apex domains cannot have CNAME records.
Question and response
Question
dig event-works.com. NS
Answer
event-works.com. 5 NS ns02.event-works.com.
event-works.com. 5 NS pdns14.domaincontrol.com.
event-works.com. 5 NS ns01.event-works.com.
event-works.com. 5 NS ns03.event-works.com.
event-works.com. 5 NS pdns13.domaincontrol.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0