Apex domains cannot have CNAME records.
Question and response
Question
dig cloudwaysapps.com. NS
Answer
cloudwaysapps.com. 5 NS ns-2016.awsdns-60.co.uk.
cloudwaysapps.com. 5 NS ns-1086.awsdns-07.org.
cloudwaysapps.com. 5 NS ns-222.awsdns-27.com.
cloudwaysapps.com. 5 NS ns-854.awsdns-42.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0