Le test d'URL simplifiée à échoué - Debian 7

Bonjour à toutes et tous,
J'ai un VPS OVH sur lequel je souhaite installer Drupal 7.38.
J'ai une configuration Apache classique, avec des utilisateurs dans le répertoire /home.
Lorsque j'installe Drupal, j'ai une erreur 500 à cause du htaccess, lorsque je le modifie mon site fonctionne correctement.
Ensuite dans le tableau de bord, tout est ok, pas d'erreurs.
Mon souci majeur survient lorsque je souhaite activé la réécriture d'url, j'ai toujours l'erreur "Le test d'URL simplifiée à échoué".
Ma version PHP : 5.4.41
Apache 2
Debian 7
Drupal 7.38

Mon htaccess :
#

Apache/PHP/Drupal settings:

#

Protect files and directories from prying eyes.

Order deny,allow
Deny from all

Set some options.

Options -Indexes

Options +FollowSymLinks

Customized error messages.

ErrorDocument 404 /index.php

Set the default handler.

DirectoryIndex index.php

Override PHP settings. More in sites/default/settings.php

but the following cannot be changed at runtime.

PHP 4, Apache 1

php_value magic_quotes_gpc 0

php_value register_globals 0

php_value session.auto_start 0

Reduce the time dynamically generated pages are cache-able.

ExpiresByType text/html A1

Various rewrite rules.

RewriteEngine on

# If your site can be accessed both with and without the prefix www.
# you can use one of the following settings to force user to use only one option:
#
# If you want the site to be accessed WITH the www. only, adapt and uncomment the following:
# RewriteCond %{HTTP_HOST} !^www.example.com$ [NC]
# RewriteRule .* http://www.example.com/ [L,R=301]
#
# If you want the site to be accessed only WITHOUT the www. , adapt and uncomment the following:
# RewriteCond %{HTTP_HOST} !^example.com$ [NC]
# RewriteRule .* http://example.com/ [L,R=301]

# Modify the RewriteBase if you are using Drupal in a subdirectory and
# the rewrite rules are not working properly.
#RewriteBase /drupal

# Rewrite old-style URLs of the form 'node.php?id=x'.
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{QUERY_STRING} ^id=([^&]+)$
#RewriteRule node.php index.php?q=node/view/%1 [L]

# Rewrite old-style URLs of the form 'module.php?mod=x'.
#RewriteCond %{REQUEST_FILENAME} !-f
#RewriteCond %{REQUEST_FILENAME} !-d
#RewriteCond %{QUERY_STRING} ^mod=([^&]+)$
#RewriteRule module.php index.php?q=%1 [L]

# Rewrite current-style URLs of the form 'index.php?q=x'.
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

$Id: .htaccess,v 1.73 2006/04/14 09:08:26 killes Exp $

Mon virtualhost :

ServerAdmin contact@webinti.com
ServerName drupal
ServerAlias drupal
DocumentRoot /home/drupal/www

# Des options : ici suivre les liens symboliques
Options FollowSymLinks
# Autoriser l'override, autrement dit les .htaccess
AllowOverride All

Options FollowSymLinks MultiViews
AllowOverride All
Order allow,deny
allow from all

ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/

AllowOverride None
Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
Order allow,deny
Allow from all

# Log pour les erreurs
ErrorLog ${APACHE_LOG_DIR}/error.log
LogLevel warn
# Log des connexion au site
CustomLog ${APACHE_LOG_DIR}/access.log combined

Si quelqu'un a une solution, merci d'avance.
Tim