DNS resolution for www.thesettlersonline.net is failing

nslookup
> server 8.8.8.8
Default server: 8.8.8.8
Address: 8.8.8.8#53
> www.thesettlersonline.net
Server: 8.8.8.8
Address: 8.8.8.8#53

** server can't find www.thesettlersonline.net: NXDOMAIN
> forum.thesettlersonline.net
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
Name: forum.thesettlersonline.net
Address: 50.56.15.98
> thesettlersonline.net
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
Name: thesettlersonline.net
Address: 50.56.15.98