diff --git a/app/controllers/DbController.php b/app/controllers/DbController.php
new file mode 100644
index 0000000..a4860d0
--- /dev/null
+++ b/app/controllers/DbController.php
@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Controllers;
+
+class DbController extends \BDSCore\BaseController
+{
+
+    /**
+     * @var \App\Models\dbModel
+     */
+    private $app;
+
+    /**
+     * DbController constructor.
+     * @param \Psr\Http\Message\RequestInterface $request
+     * @param \Psr\Http\Message\ResponseInterface $response
+     */
+    public function __construct(\Psr\Http\Message\RequestInterface $request, \Psr\Http\Message\ResponseInterface $response) {
+        parent::__construct($request, $response);
+
+        $this->app = new \App\Models\DbModel();
+    }
+
+    /**
+     * @return void
+     */
+    public function index() {
+        $this->render('db.twig', [
+            'bookmarks' => $this->app->bookmarkList()
+        ]);
+    }
+
+}
\ No newline at end of file
diff --git a/app/controllers/dbController.php b/app/controllers/dbController.php
deleted file mode 100644
index d2e6f71..0000000
--- a/app/controllers/dbController.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-
-namespace App\Controllers;
-
-/**
- * Class mysqlController
- * @package App\Controllers
- */
-class dbController extends \BDSCore\BaseController
-{
-    private $app;
-
-
-    public function __construct(\Psr\Http\Message\RequestInterface $request, \Psr\Http\Message\ResponseInterface $response)
-    {
-        parent::__construct($request, $response);
-
-        $this->app = new \App\Models\dbModel();
-    }
-
-
-    public function index()
-    {
-        $this->render('db.twig', ['bookmarks' => $this->app->bookmarkList()]);
-    }
-
-}
\ No newline at end of file
diff --git a/app/models/DbModel.php b/app/models/DbModel.php
new file mode 100644
index 0000000..60e8fc5
--- /dev/null
+++ b/app/models/DbModel.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace App\Models;
+
+/**
+ * Class DbModel
+ * @package App\Models
+ */
+class DbModel
+{
+
+    /**
+     * @var \BDSCore\Database\Database
+     */
+    private $database;
+
+    /**
+     * DbModel constructor.
+     */
+    public function __construct() {
+        $this->database = new \BDSCore\Database\Database();
+    }
+
+    /**
+     * @return array
+     */
+    public function bookmarkList() {
+        $sql = 'SELECT id, url, nom FROM bookmark ORDER BY id ASC';
+        $result = $this->database->fetchAll($sql);
+
+        return $result;
+    }
+
+}
\ No newline at end of file
diff --git a/app/models/dbModel.php b/app/models/dbModel.php
deleted file mode 100644
index f215eb5..0000000
--- a/app/models/dbModel.php
+++ /dev/null
@@ -1,24 +0,0 @@
-<?php
-namespace App\Models;
-use BDSCore;
-
-class dbModel
-{
-    private $database;
-
-    public function __construct()
-    {
-        $this->database = new BDSCore\Database\Database();
-    }
-
-
-    public function bookmarkList()
-    {
-        $sql = 'SELECT id, url, nom FROM bookmark ORDER BY id ASC';
-
-        $result = $this->database->fetchAll($sql);
-
-        return $result;
-    }
-
-}
\ No newline at end of file
diff --git a/app/views/db.twig b/app/views/db.twig
index c65c2bf..4583ce9 100644
--- a/app/views/db.twig
+++ b/app/views/db.twig
@@ -4,17 +4,17 @@
 
 {% block body %}
 
-<div class="block-center">
-    <h1>Test database</h1>
-</div>
+    <div class="block-center">
+        <h1>Test database</h1>
+    </div>
 
-<div class="block_table">
-{% for key, bookmark in bookmarks %}
+    <div class="block_table">
+        {% for key, bookmark in bookmarks %}
 
-#{{ bookmark.id }} <a href="http://{{ bookmark.url }}">{{ bookmark.nom }}</a><br/>
+            #{{ bookmark.id }} <a href="http://{{ bookmark.url }}">{{ bookmark.nom }}</a>
+            <br/>
 
-{% endfor %}
-</div>
-
-{% endblock %}
+        {% endfor %}
+    </div>
 
+{% endblock %}
\ No newline at end of file
diff --git a/app/views/errors/error500.twig b/app/views/errors/error500.twig
index 9b7e0ea..792570e 100644
--- a/app/views/errors/error500.twig
+++ b/app/views/errors/error500.twig
@@ -6,9 +6,9 @@
 
     <span class="header"></span>
 
-    <div style="margin-top: 80px;" class="">
+    <div class="block-center">
         <h1>Error 500 : Internal server error</h1>
-        <span style="font-family: 'Courier New'; font-size: 0.80em;">
+        <span>
             {% if(exception == false) %}
                 Unexpected error... <br>
                 An error occurred and your request couldn't be completed. Please try again.
diff --git a/config/config.php b/config/config.php
index 21b5246..44958b3 100644
--- a/config/config.php
+++ b/config/config.php
@@ -15,12 +15,12 @@
     'routerCache' => false,
 
     'twigViews' => 'app/views',
-    'twigCache' => false, //'cache/twig',
+    'twigCache' => 'cache/twig',
 
-    'db_driver'   => 'postgresql',
+    'db_driver'   => 'mysql',
     'db_host'     => 'localhost',
-    'db_name'     => 'framework',
-    'db_username' => 'stephane',
-    'db_password' => 'stephane',
+    'db_name'     => 'BDS_Framework',
+    'db_username' => 'root',
+    'db_password' => '',
 
 ];
\ No newline at end of file
diff --git a/config/router.php b/config/router.php
index f02c52f..d1b2217 100644
--- a/config/router.php
+++ b/config/router.php
@@ -9,10 +9,10 @@
     ],
 
     'routes' => [
-        'homePage'  => ['get', '/',                 'homeController@index'],
-        'helloPage' => ['get', '/hello/{name:\w+}', 'helloController@index'],
-        'testPage'  => ['get', '/test',             'testController@index'],
-        'dbPage'    => ['get', '/db',               'dbController@index'],
+        'homePage'  => ['get', '/', 'HomeController@index'],
+        'helloPage' => ['get', '/hello/{name:\w+}', 'HelloController@index'],
+        'testPage'  => ['get', '/test', 'TestController@index'],
+        'dbPage'    => ['get', '/database', 'DbController@index'],
     ]
 
 ];
\ No newline at end of file
diff --git a/core/Database/Database.php b/core/Database/Database.php
index 7ce4be0..e99f9fe 100644
--- a/core/Database/Database.php
+++ b/core/Database/Database.php
@@ -2,6 +2,8 @@
 
 namespace BDSCore\Database;
 
+use BDSCore\Config\Config;
+
 /**
  * Class Database
  * @package BDSCore\Database
@@ -14,61 +16,54 @@ class Database
      */
     private $pdo;
 
-
     /**
      * Database constructor.
      * @param string|null $driver
      * @param string|null $databaseName
      * @throws DatabaseException
      */
-    public function __construct()
-    {
+    public function __construct() {
         return $this->connect();
     }
 
-
     /**
      * @param $driver
      * @param $databaseName
      * @return \PDO
      * @throws DatabaseException
      */
-    public function connect()
-    {
+    public function connect() {
+        $config = Config::getAllConfig();
         $params = [
-            'driver'   => \BDSCore\Config\Config::getConfig('db_driver'),
-            'hostname' => \BDSCore\Config\Config::getConfig('db_host'),
-            'database' => \BDSCore\Config\Config::getConfig('db_name'),
-            'username' => \BDSCore\Config\Config::getConfig('db_username'),
-            'password' => \BDSCore\Config\Config::getConfig('db_password')
+            'driver'   => $config['db_driver'],
+            'hostname' => $config['db_host'],
+            'database' => $config['db_name'],
+            'username' => $config['db_username'],
+            'password' => $config['db_password']
         ];
 
-        if ($params['driver'] == 'sqlite')
-        {
+        if ($params['driver'] == 'sqlite') {
             if ($params['database'] == null) {
                 throw new DatabaseException('The name of the database must be specified');
             }
 
-            $this->pdo = new \PDO("sqlite:./storage/databases/{$params['database']}.sqlite");
-        }
-        elseif ($params['driver'] == 'mysql')
-        {
+            Config::getDirectoryRoot();
+            $this->pdo = new \PDO(
+                'sqlite:' . Config::getDirectoryRoot("/storage/databases/{$params['database']}.sqlite")
+            );
+        } elseif ($params['driver'] == 'mysql') {
             try {
                 $this->pdo = new \PDO("mysql:host={$params['hostname']};dbname={$params['database']};charset=UTF8", $params['username'], $params['password']);
             } catch (\Exception $e) {
                 throw new DatabaseException($e->getMessage());
             }
-        }
-        elseif ($params['driver'] == 'postgresql')
-        {
+        } elseif ($params['driver'] == 'postgresql') {
             try {
                 $this->pdo = new \PDO("pgsql:dbname={$params['database']};host={$params['hostname']}", $params['username'], $params['password']);
             } catch (\DatabaseException $e) {
                 throw new DatabaseException($e->getMessage());
             }
-        }
-        else
-        {
+        } else {
             throw new DatabaseException('Use of an unknown driver name in the \BDSCore\Database() class.');
         }
 
@@ -78,7 +73,6 @@ public function connect()
         return $this->pdo;
     }
 
-
     /**
      * @param string $query
      * @param array $params
@@ -100,7 +94,6 @@ public function query(string $query, array $params = [], string $entity = null)
         return $query;
     }
 
-
     /**
      * @param string $query
      * @param array $params
@@ -111,7 +104,6 @@ public function fetch(string $query, array $params = [], string $entity = null)
         return $this->query($query, $params, $entity)->fetch();
     }
 
-
     /**
      * @param string $query
      * @param array $params
@@ -122,7 +114,6 @@ public function fetchAll(string $query, array $params = [], string $entity = nul
         return $this->query($query, $params, $entity)->fetchAll();
     }
 
-
     /**
      * @param string $query
      * @param array $params
@@ -132,7 +123,6 @@ public function fetchColumn(string $query, array $params = [], string $entity =
         return $this->query($query, $params, $entity)->fetchColumn();
     }
 
-
     /**
      * @return int
      */
@@ -140,7 +130,6 @@ public function lastInsertId(): int {
         return $this->pdo->lastInsertId();
     }
 
-
     /**
      * @param string|null $tableName
      * @param $collumns
@@ -165,7 +154,6 @@ public function insert(string $tableName = null, $collumns, $values) {
         }
     }
 
-
     /**
      * @param string|null $tableName
      * @param null $collums
diff --git a/core/Database/DatabaseException.php b/core/Database/DatabaseException.php
index bc3ebf2..4b2d316 100644
--- a/core/Database/DatabaseException.php
+++ b/core/Database/DatabaseException.php
@@ -8,8 +8,5 @@
  */
 class DatabaseException extends \Exception
 {
-    public function test()
-    {
-        return 'ERROR CONNEXIOn DATABASE';
-    }
+
 }
\ No newline at end of file
diff --git a/core/Functions/Functions.php b/core/Functions/Functions.php
index 2820c45..dee3ca6 100644
--- a/core/Functions/Functions.php
+++ b/core/Functions/Functions.php
@@ -5,7 +5,7 @@
  * @return bool
  */
 function debug($item): bool {
-    \BDSCore\Debug\debugBar::pushElement('Debug#' . substr(uniqid(), 8), $item);
+    \BDSCore\Debug\DebugBar::pushElement('Debug#' . substr(uniqid(), 8), $item);
 
     return \BDSCore\Debug\Debugger::debug($item);
 }
diff --git a/public/index.php b/public/index.php
index f836307..84747a1 100644
--- a/public/index.php
+++ b/public/index.php
@@ -26,6 +26,6 @@
 set_error_handler([$app, 'catchException']);
 set_exception_handler([$app, 'catchException']);
 
-require('../core/functions/Functions.php');
+require('../core/Functions/Functions.php');
 
 $app->run($request, $response, $timeStart);
\ No newline at end of file
diff --git a/storage/databases/db_mysql.sql b/storage/databases/db_mysql.sql
index e903199..7bed2cb 100644
--- a/storage/databases/db_mysql.sql
+++ b/storage/databases/db_mysql.sql
@@ -1,4 +1,8 @@
 
+/*
+  BDS Framework, For example only
+*/
+
 CREATE DATABASE framework;
 
 CREATE TABLE bookmark
diff --git a/storage/databases/db_postgresql.sql b/storage/databases/db_postgresql.sql
index 4b52b01..3211cc3 100644
--- a/storage/databases/db_postgresql.sql
+++ b/storage/databases/db_postgresql.sql
@@ -1,4 +1,8 @@
 
+/*
+  BDS Framework, For example only
+*/
+
 CREATE DATABASE framework
 WITH OWNER = stephane
 ENCODING = 'UTF8'