Apex domains cannot have CNAME records.
Question and response
Question
dig alabasterbayapartments.com. NS
Answer
alabasterbayapartments.com. 4 NS ns-1753.awsdns-27.co.uk.
alabasterbayapartments.com. 4 NS ns-1520.awsdns-62.org.
alabasterbayapartments.com. 4 NS ns-876.awsdns-45.net.
alabasterbayapartments.com. 4 NS ns-1135.awsdns-13.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0