Apex domains cannot have CNAME records.
Question and response
Question
dig libertybookandbible.com. NS
Answer
libertybookandbible.com. 5 NS ns-2028.awsdns-61.co.uk.
libertybookandbible.com. 5 NS ns-930.awsdns-52.net.
libertybookandbible.com. 5 NS ns-506.awsdns-63.com.
libertybookandbible.com. 5 NS ns-748.awsdns-29.net.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0