Apex domains cannot have CNAME records.
Question and response
Question
dig tarixpharma.com. NS
Answer
tarixpharma.com. 5 NS ns-1766.awsdns-28.co.uk.
tarixpharma.com. 5 NS ns-692.awsdns-22.net.
tarixpharma.com. 5 NS ns-1224.awsdns-25.org.
tarixpharma.com. 5 NS ns-1411.awsdns-48.org.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0