httpd.conf making wrong parameter automatically

Hi
In new configed CentOS 6 I have just 1 web site and after I add webmail for domain with this guide httpd service will going down and when I want to start I will see this error:

So I delete extra ended "</VirtualHost>" that have no begin on line 62 and service will start but after a while service will go down and this will come back exactly with same error. where is the template for this file? I checked some files in /usr/local/directadmin/data/templates but I didnt found any extra ended </VirtualHost> .