MultiSite with SubDomains

Hello,

I have a multisite installed on http://www.aka.bf on subdomains (with wildcard) and multidomain.
For example, result is :
sherikidz.aka.bf = http://www.sherikidz.com

Now, I want to add another subdomain, without multidomain : for example 2015.aka.bf

I’ve added the redirection on the domain manager and have now these redirections :
– *.aka.bf
– 2015.aka.bf
– http://www.2015.aka.bf

But when I go on 2015.aka.bf, it redirects on the main site http://www.aka.bf

Here is my HTACCESS file :

SetEnv PHP_VER 5_3
SetEnv REGISTER_GLOBALS 0

Options -Indexes
ErrorDocument 403 http://www.aka.bf

RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]

# add a trailing slash to /wp-admin
RewriteRule ^wp-admin$ wp-admin/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteRule ^(wp-(content|admin|includes).*) $1 [L]
RewriteRule ^(.*\.php)$ $1 [L]
RewriteRule . index.php [L]

Thank you very much for your help.