diff --git a/Admin/Installer.php b/Admin/Installer.php
index 2cd68e0..3d6d047 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -17,6 +17,7 @@ namespace Modules\Accounting\Admin;
 
 use phpOMS\DataStorage\Database\DatabaseType;
 use phpOMS\DataStorage\Database\Pool;
+use phpOMS\Module\InfoManager;
 use phpOMS\Module\InstallerAbstract;
 
 /**
diff --git a/Admin/Routes/http.php b/Admin/Routes/http.php
index c0e326e..1b02353 100644
--- a/Admin/Routes/http.php
+++ b/Admin/Routes/http.php
@@ -1,5 +1,7 @@
 <?php
 
+use phpOMS\Router\RouteVerb;
+
 return [
     '^.*/backend/accounting/personal/entries.*$' => [
         [
diff --git a/Controller.php b/Controller.php
index eb0f830..ae40fc5 100644
--- a/Controller.php
+++ b/Controller.php
@@ -91,7 +91,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewEntries(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewEntries(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/entries');
@@ -110,7 +110,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewJournalList(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewJournalList(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/journal-list');
@@ -129,7 +129,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewStackList(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewStackList(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/stack-list');
@@ -148,7 +148,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewStackPredefinedList(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewStackPredefinedList(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/stack-predefined-list');
@@ -167,7 +167,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewStackCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewStackCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/stack-create');
@@ -186,7 +186,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewStackEntries(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewStackEntries(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/stack-entries');
@@ -205,7 +205,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewStackArchiveList(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewStackArchiveList(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/stack-archive-list');
@@ -224,7 +224,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewGLList(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewGLList(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/gl-list');
@@ -243,7 +243,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewGLCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewGLCreate(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/gl-create');
@@ -262,7 +262,7 @@ class Controller extends ModuleAbstract implements WebInterface
      * @since  1.0.0
      * @author Dennis Eichhorn <d.eichhorn@oms.com>
      */
-    public function viewGLProfile(RequestAbstract $request, ResponseAbstract $response, $data = null) : RenderableInterface
+    public function viewGLProfile(RequestAbstract $request, ResponseAbstract $response, $data = null) : \Serializable
     {
         $view = new View($this->app, $request, $response);
         $view->setTemplate('/Modules/Accounting/Theme/Backend/gl-profile');
diff --git a/Theme/Backend/Lang/en.lang.php b/Theme/Backend/Lang/en.lang.php
index 021d988..d39665f 100644
--- a/Theme/Backend/Lang/en.lang.php
+++ b/Theme/Backend/Lang/en.lang.php
@@ -13,7 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
-$MODLANG['Accounting'] = [
+return ['Accounting' => [
     'Account'         => 'Account',
     'Accounts'        => 'Accounts',
     'BatchPostings'   => 'Batch Postings',
@@ -46,4 +46,4 @@ $MODLANG['Accounting'] = [
     'To'              => 'To',
     'Total'           => 'Total',
     'Type'            => 'Type',
-];
+]];
diff --git a/Theme/backend/Lang/Navigation.en.lang.php b/Theme/backend/Lang/Navigation.en.lang.php
index 6610932..755d4e1 100644
--- a/Theme/backend/Lang/Navigation.en.lang.php
+++ b/Theme/backend/Lang/Navigation.en.lang.php
@@ -13,7 +13,7 @@
  * @version    1.0.0
  * @link       http://orange-management.com
  */
-$MODLANG['Navigation'] = [
+return ['Navigation' => [
     'Accounting'      => 'Accounting',
     'AccountPostings' => 'Account Postings',
     'Balance'         => 'Balance',
@@ -25,4 +25,4 @@ $MODLANG['Navigation'] = [
     'Entries'         => 'Entries',
     'Postings'        => 'Postings',
     'Predefined'      => 'Predefined',
-];
+]];