diff --git a/Account/Account.php b/Account/Account.php
index 4c106ac61..0e6b88f38 100644
--- a/Account/Account.php
+++ b/Account/Account.php
@@ -318,7 +318,7 @@ class Account implements ArrayableInterface, \JsonSerializable
      *
      * @since  1.0.0
      */
-    public function hasPermission(int $permission, ?int $unit = null, ?string $app = null, ?string $module = null, ?int $type = null, ?int $element = null, ?int $component = null) : bool
+    public function hasPermission(int $permission, int $unit = null, string $app = null, string $module = null, int $type = null, int $element = null, int $component = null) : bool
     {
         $app = $app !== null ? strtolower($app) : $app;
 
diff --git a/Business/Marketing/NetPromoterScore.php b/Business/Marketing/NetPromoterScore.php
index ec589cc8b..6cdf180b3 100644
--- a/Business/Marketing/NetPromoterScore.php
+++ b/Business/Marketing/NetPromoterScore.php
@@ -35,16 +35,6 @@ class NetPromoterScore
      */
     private $scores = [];
 
-    /**
-     * Constructor.
-     *
-     * @since  1.0.0
-     */
-    public function __construct() 
-    {
-
-    }
-
     /**
      * Add score.
      *
diff --git a/Log/LoggerInterface.php b/Log/LoggerInterface.php
index fc331da3a..a7cdd8ed0 100644
--- a/Log/LoggerInterface.php
+++ b/Log/LoggerInterface.php
@@ -31,7 +31,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function emergency(string $message, array $context = []) : void;
 
@@ -44,7 +44,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function alert(string $message, array $context = []) : void;
 
@@ -56,7 +56,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function critical(string $message, array $context = []) : void;
 
@@ -67,7 +67,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function error(string $message, array $context = []) : void;
 
@@ -80,7 +80,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function warning(string $message, array $context = []) : void;
 
@@ -90,7 +90,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function notice(string $message, array $context = []) : void;
 
@@ -102,7 +102,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function info(string $message, array $context = []) : void;
 
@@ -112,7 +112,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function debug(string $message, array $context = []) : void;
 
@@ -123,7 +123,7 @@ interface LoggerInterface
      * @param string $message Logging message schema
      * @param array  $context Context to log
      *
-     * @return null
+     * @return void
      */
     public function log(string $level, string $message, array $context = []) : void;
 }