diff --git a/resources/views/setup/migrations/import-v2-both.tpl b/resources/views/setup/migrations/import-v2-both.tpl
index a831db77..3978c073 100644
--- a/resources/views/setup/migrations/import-v2-both.tpl
+++ b/resources/views/setup/migrations/import-v2-both.tpl
@@ -48,9 +48,8 @@
     </table>
 
 
-    @if (session()->has('msg'))
-    <div class="alert alert-warning" role="alert">{{ session('msg') }}</div>
-    <?php session()->forget('msg'); ?>
+    @if (isset($_SESSION['msg']))
+    <div class="alert alert-warning" role="alert">{{ $_SESSION['msg'] }}</div> <?php unset($_SESSION['msg']); ?>
     @endif
 
     <p class="step">
diff --git a/resources/views/setup/migrations/import-v2-textures.tpl b/resources/views/setup/migrations/import-v2-textures.tpl
index 456f5db1..c37f2e31 100644
--- a/resources/views/setup/migrations/import-v2-textures.tpl
+++ b/resources/views/setup/migrations/import-v2-textures.tpl
@@ -56,9 +56,8 @@
         </tr>
     </table>
 
-    @if (session()->has('msg'))
-    <div class="alert alert-warning" role="alert">{{ session('msg') }}</div>
-    <?php session()->forget('msg'); ?>
+    @if (isset($_SESSION['msg']))
+    <div class="alert alert-warning" role="alert">{{ $_SESSION['msg'] }}</div> <?php unset($_SESSION['msg']); ?>
     @endif
 
     <p class="step">
diff --git a/resources/views/setup/migrations/import-v2-users.tpl b/resources/views/setup/migrations/import-v2-users.tpl
index fcd69894..ccfb32d2 100644
--- a/resources/views/setup/migrations/import-v2-users.tpl
+++ b/resources/views/setup/migrations/import-v2-users.tpl
@@ -26,9 +26,8 @@
         </tr>
     </table>
 
-    @if (session()->has('msg'))
-    <div class="alert alert-warning" role="alert">{{ session('msg') }}</div>
-    <?php session()->forget('msg'); ?>
+    @if (isset($_SESSION['msg']))
+    <div class="alert alert-warning" role="alert">{{ $_SESSION['msg'] }}</div> <?php unset($_SESSION['msg']); ?>
     @endif
 
     <p class="step">
diff --git a/setup/bootstrap.php b/setup/bootstrap.php
index 8eccd809..4696c6ad 100644
--- a/setup/bootstrap.php
+++ b/setup/bootstrap.php
@@ -23,13 +23,15 @@ $handler = new \Whoops\Handler\PrettyPageHandler;
 $whoops->pushHandler($handler);
 $whoops->register();
 
+// Instantiate Application
 $app = new Illuminate\Foundation\Application(BASE_DIR);
 
+// Set Container for Facades
 Illuminate\Support\Facades\Facade::setFacadeApplication($app);
 
+// Register Basic Service Providers manually
 (new Illuminate\View\ViewServiceProvider($app))->register();
 (new Illuminate\Foundation\Bootstrap\LoadConfiguration)->bootstrap($app);
-
 (new Illuminate\Database\DatabaseServiceProvider($app))->register();
 (new Illuminate\Filesystem\FilesystemServiceProvider($app))->register();
 (new Illuminate\Foundation\Bootstrap\LoadConfiguration)->bootstrap($app);
@@ -47,11 +49,6 @@ foreach ($config['aliases'] as $facade => $class) {
 
 \View::addExtension('tpl', 'blade');
 
-// Set Default Timezone to UTC+8
-date_default_timezone_set('Asia/Shanghai');
-
-
-
 $config = require BASE_DIR.'/config/database.php';
 
 $db_config = $config['connections']['mysql'];
diff --git a/setup/index.php b/setup/index.php
index 9b6fa624..17332897 100644
--- a/setup/index.php
+++ b/setup/index.php
@@ -3,7 +3,6 @@
  * Installation of Blessing Skin Server
  */
 
-// Register Composer Auto Loader
 require __DIR__."/bootstrap.php";
 
 // If already installed
diff --git a/setup/migrations/index.php b/setup/migrations/index.php
index a29cdade..a1afe6dc 100644
--- a/setup/migrations/index.php
+++ b/setup/migrations/index.php
@@ -3,20 +3,12 @@
  * Migrations Bootstrap of Blessing Skin Server
  */
 
-// Define Base Directory
-define('BASE_DIR', dirname(dirname(dirname(__FILE__))));
+require dirname(__DIR__)."/bootstrap.php";
 
-// Register Composer Auto Loader
-require BASE_DIR.'/vendor/autoload.php';
-
-// Initialize Application
-$app = new Blessing\Foundation\Application();
-$app->boot();
-Boot::registerErrorHandler(new \Whoops\Handler\PrettyPageHandler);
-
-$db_config = Config::getDbConfig();
-
-Boot::checkInstallation('../../setup/index.php');
+// If already installed
+if (!checkTableExist()) {
+    Http::redirect('../index.php');
+}
 
 if (isset($_COOKIE['uid']) && isset($_COOKIE['token'])) {
     $_SESSION['uid'] = $_COOKIE['uid'];
diff --git a/setup/update.php b/setup/update.php
index ea293bf7..19286f36 100644
--- a/setup/update.php
+++ b/setup/update.php
@@ -3,21 +3,10 @@
  * Migrations Bootstrap of Blessing Skin Server
  */
 
-// Define Base Directory
-define('BASE_DIR', dirname(dirname(__FILE__)));
-
-// Register Composer Auto Loader
-require BASE_DIR.'/vendor/autoload.php';
-
-// Initialize Application
-$app = new Blessing\Foundation\Application();
-$app->boot();
-Boot::registerErrorHandler(new \Whoops\Handler\PrettyPageHandler);
-
-$db_config = Config::getDbConfig();
+require __DIR__."/bootstrap.php";
 
 // If no update is available
-if (App::version() == Option::get('version', '')) {
+if (config('app.version') == Option::get('version', '')) {
     View::show('setup.locked');
     exit;
 }
@@ -37,7 +26,7 @@ switch ($step) {
                 preg_match('/update-(.*)-to-(.*).php/', $filename, $matches);
 
                 if (isset($matches[2])) {
-                    $update_script_exist = ($matches[2] == App::version());
+                    $update_script_exist = ($matches[2] == config('app.version'));
                 } else {
                     continue;
                 }
@@ -49,7 +38,7 @@ switch ($step) {
 
         if (!$update_script_exist) {
             // if update script is not given
-            Option::set('version', App::version());
+            Option::set('version', config('app.version'));
         }
 
         View::show('setup.updates.success');