Domain mapping plugin is not working two domian with same ip

i have two domain esplet.si and ceniki.com both are same ip (63.247.141.25),

but both domains have different cpanel

esplet.si on this domain multisite is working , i need to map (blog3.esplet.si) this to new domain ceniki.com

How can i mapped on this ceniki.com

please let me know, its urgent

thanks