In order to park your domain, please follow the below steps :
1) Visit http://cp.us2.net and login using the noted email address you used when this domain was created/moved into Logicbox.
2) Once logged in, search for your domain name and click it.
3) You will find a link for "modify name server"
Use the following nameservers and remove the rest.
Name Server1 parking1.stargateinc.net
Name Server2 parking2.stargateinc.net