diff --git a/Admin/Activate.php b/Admin/Activate.php
index f8898b4..bec4686 100644
--- a/Admin/Activate.php
+++ b/Admin/Activate.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\BankAccounting\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 157d7d6..b2b76ae 100644
--- a/Admin/Deactivate.php
+++ b/Admin/Deactivate.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\BankAccounting\Admin;
 
-use phpOMS\DataStorage\Database\DatabaseType;
+
 use phpOMS\DataStorage\Database\Pool;
 use phpOMS\Module\DeactivateAbstract;
 
diff --git a/Admin/Install/Navigation.php b/Admin/Install/Navigation.php
index 1b61bc1..cc94b43 100644
--- a/Admin/Install/Navigation.php
+++ b/Admin/Install/Navigation.php
@@ -14,6 +14,7 @@
  * @link       http://orange-management.com
  */
 namespace Modules\BankAccounting\Admin\Install;
+use phpOMS\DataStorage\Database\Pool;
 
 /**
  * Navigation class.
@@ -33,6 +34,7 @@ class Navigation
         $navData = json_decode(file_get_contents(__DIR__ . '/Navigation.install.json'), true);
 
         $class = '\\Modules\\Navigation\\Admin\\Installer';
+        /** @var $class \Modules\Navigation\Admin\Installer */
         $class::installExternal($dbPool, $navData);
     }
 }
diff --git a/Admin/Uninstall.php b/Admin/Uninstall.php
index 368a081..9936462 100644
--- a/Admin/Uninstall.php
+++ b/Admin/Uninstall.php
@@ -15,7 +15,7 @@
  */
 namespace Modules\BankAccounting\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 f0a2b60..6871e71 100644
--- a/Admin/Update.php
+++ b/Admin/Update.php
@@ -15,9 +15,10 @@
  */
 namespace Modules\BankAccounting\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);
     }
 }