Domain and Subdomains with Virtual Hosts in Apache and Plesk

Hello to all, first i have to say that i am new with Plesk and i am spanish so it's possible that my english is not so good..

Well..i'm trying to create an domain,and subdomains (subdomains for support each language) and I would like the structure were that way:
/var/www/vhosts/domain.com/httpdocs(scripts JS,includes PHP,scripts CSS..)/subdomains(content of the current language)

Because i don't want to duplicate CSS,JS and includes PHP files..

So when i want to include file that are in /var/www/vhosts/domain/httpdocs i should include in this way:

I have modified file /etc/httpdocs/conf.d

and the file /var/www/vhosts/domain.com/conf/vhost.conf (to create subdomains):

I have created all the necessary directories

But when i reboot the system,it doesn't work, and i try to go to es.domain.com the browser goes to the Horde login,and I don't want that!

It should go to /var/www/vhosts/domain.com/es

I am not sure if I would create a Virtual Host of domain.com..but I think creating that virtual host,it would not solve the problem..

Please,how can I solve it?

Thanks in advance for your help