regarding logging into user accounts

i created a domain from the whm of my server. the problem is iam unable to log in to the account's cpanel using neither its password nor the root password.
somebody help me solve the issue

 

i solved the problem

i solved the problem , i wonder why i did'nt think about it all along
actually i created a domain that exists in the inetrnet as well , so i had make my resolver point to the nameserver i configured as well

after doing this iam able to login to the cpanel of this account.