diff --git a/Admin/Installer.php b/Admin/Installer.php
index 353dc38..d139391 100644
--- a/Admin/Installer.php
+++ b/Admin/Installer.php
@@ -15,7 +15,9 @@ declare(strict_types=1);
 namespace Modules\Admin\Admin;
 
 use phpOMS\DataStorage\Database\Connection\SQLiteConnection;
+use phpOMS\DataStorage\Database\DatabasePool;
 use phpOMS\DataStorage\Database\Query\Builder;
+use phpOMS\Module\InfoManager;
 use phpOMS\Module\InstallerAbstract;
 
 /**
@@ -33,6 +35,8 @@ class Installer extends InstallerAbstract
      */
     public static function install(DatabasePool $dbPool, InfoManager $info) : void
     {
+        parent::install($dbPool, $info);
+
         $sqlite = new SQLiteConnection([
             'db' => 'sqlite',
             'prefix' => '',
@@ -45,14 +49,24 @@ class Installer extends InstallerAbstract
         $sqlite->close();
     }
 
-    private static function installCountries(SQLiteConnection $sqlite, DatabasePool $dbPool)
+    /**
+     * Install countries
+     *
+     * @param SQLiteConnection $sqlite SQLLite database connection of the source data
+     * @param DatabasePool     $dbPool Database pool to save data to
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    private static function installCountries(SQLiteConnection $sqlite, DatabasePool $dbPool) : void
     {
         $con = $dbPool->get();
 
         $query = new Builder($con);
         $query->insert('country_name', 'country_native', 'country_code2', 'country_code3', 'country_codenum')->into('country');
 
-        $countries = $sqlite->select('*')->from('country')->execute();
+        $countries = $query->select('*')->from('country')->execute();
         foreach ($countries as $country) {
             $query->values(
                 $country['country_name'],
@@ -66,14 +80,24 @@ class Installer extends InstallerAbstract
         $con->execute($query->toSql());
     }
 
-    private static function installLanguages(SQLiteConnection $sqlite, DatabasePool $dbPool)
+    /**
+     * Install languages
+     *
+     * @param SQLiteConnection $sqlite SQLLite database connection of the source data
+     * @param DatabasePool     $dbPool Database pool to save data to
+     *
+     * @return void
+     *
+     * @since 1.0.0
+     */
+    private static function installLanguages(SQLiteConnection $sqlite, DatabasePool $dbPool) : void
     {
         $con = $dbPool->get();
 
         $query = new Builder($con);
         $query->insert('language_name', 'language_native', 'language_639_2T', 'language_639_2B', 'language_639_3')->into('language');
 
-        $languages = $sqlite->select('*')->from('language')->execute();
+        $languages = $query->select('*')->from('language')->execute();
         foreach ($languages as $language) {
             $query->values(
                 $language['language_name'],