solve my overlapping problem in apache

Dear Debain

i m getting problem in apache what is the problem i try to put my webpage in another machine after it i made the virtual host with ip of that machine where i putted my webpage well i did two entries in virtual hosting one is with "www" and second is without www when i try to redirect my virtual domains to the ip where i putted my webpage its gave me error of overlapping y plz give me help in it