diff --git a/Admin/Activate.php b/Admin/Activate.php
index 4d972e6..d94ef6c 100644
--- a/Admin/Activate.php
+++ b/Admin/Activate.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Contact\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\ActivateAbstract;
 
diff --git a/Admin/Deactivate.php b/Admin/Deactivate.php
index ede4493..23b183f 100644
--- a/Admin/Deactivate.php
+++ b/Admin/Deactivate.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Contact\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\DeactivateAbstract;
 
diff --git a/Admin/Installer.php b/Admin/Installer.php
index f38d2f3..95bac34 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Contact\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\InstallerAbstract;
 
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index f90ad07..15b9b91 100644
--- a/Admin/Uninstall.php
+++ b/Admin/Uninstall.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\Contact\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\UninstallAbstract;
 
diff --git a/Admin/Update.php b/Admin/Update.php
index 3ba00ac..184eded 100644
--- a/Admin/Update.php
+++ b/Admin/Update.php
@@ -15,9 +15,10 @@
  */
 namespace Modules\Contact\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\UpdateAbstract;
+use phpOMS\System\FileSystem;
 
 /**
  * Navigation class.
@@ -38,6 +39,8 @@ class Update extends UpdateAbstract
      */
     public static function update(Pool $dbPool, array $info)
     {
+        FileSystem::deletePath(__DIR__ . '/Update');
+        mkdir('Update');
         parent::update($dbPool, $info);
     }
 }
diff --git a/Controller.php b/Controller.php
index 416d419..58eff15 100644
--- a/Controller.php
+++ b/Controller.php
@@ -55,7 +55,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @var \string
      * @since 1.0.0
      */
-    protected static $module = 'Contact';
+    const MODULE_NAME = 'Contact';
 
     /**
      * Localization files.
@@ -64,7 +64,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since 1.0.0
      */
     protected static $localization = [
-        RequestDestination::BACKEND => ['backend'],
+        RequestDestination::BACKEND => [''],
     ];
 
     /**
diff --git a/Theme/lang/backend.en.lang.php b/Theme/Backend/Lang/en.lang.php
similarity index 100%
rename from Theme/lang/backend.en.lang.php
rename to Theme/Backend/Lang/en.lang.php