I am trying to add SharePoint users but unable to do so. When i checked error logs created by HC I found the following error in these error logs:
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).
 
Does anybody else got this error too? And how to resolve it? Please specify exact steps
Thanks in Advance.

Check this link to correct the permissions at server end
http://portal.hostingcontroller.com/KB/a157/sharepoint-site-is-not-being-created-through-hc-panel.aspx