如何让我的路线在OVH和CakePHP上正常运行?

I recently uploaded a website on OVH made with the CakePHP Framework.

The fact is that whenever I want to go on a prefixed route, like /admin, or a plugin route, like /plugin_name, it's just duplicate the route on the URL.

For example, I'm on /admin/users/add, I click on the link to go on the index admin ( /admin ), the URL will be /admin/users/add/admin. For every prefixed route.

I've put all my folders directly on /www.

Here are my different .htaccess files:

On the root:

SetEnv PHP_VER 5
<IfModule mod_rewrite.c>
   RewriteEngine on
   RewriteRule    ^$ /app/webroot/    [L]
   RewriteRule    (.*) /app/webroot/$1 [L]
</IfModule>

Into the app folder:

<IfModule mod_rewrite.c>
    RewriteEngine on
    RewriteRule    ^$    /webroot/    [L]
    RewriteRule    (.*) /webroot/$1    [L] 
</IfModule>

And into the webroot:

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^(.*)$ /index.php/$1 [QSA,L]
</IfModule>

Furthermore, That did the same with my CSS / JS declarations in the <head>, and I noticed that if I don't use the CakePHP HtmlHelper, it works. But I can't do that for all my links / forms.

Thanks.