I can't access the admin page of Pi-hole using the dns name

Help
14

now we are getting some where

Chromie@Anthracite ~ % nslookup pi.hole 172.21.127.68
Server:		172.21.127.68
Address:	172.21.127.68#53

Name:	pi.hole
Address: 172.21.127.68

Chromie@Anthracite ~ %```