Apex domains cannot have CNAME records.
Question and response
Question
dig aflowerbucketflorist.com. NS
Answer
aflowerbucketflorist.com. 1 NS ns-733.awsdns-27.net.
aflowerbucketflorist.com. 1 NS ns-1015.awsdns-62.net.
aflowerbucketflorist.com. 1 NS ns-1744.awsdns-26.co.uk.
aflowerbucketflorist.com. 1 NS ns-246.awsdns-30.com.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0