diff --git a/Controller/ApiController.php b/Controller/ApiController.php
index e91eb0b..fab6128 100644
--- a/Controller/ApiController.php
+++ b/Controller/ApiController.php
@@ -26,6 +26,7 @@ use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
 use phpOMS\Model\Message\FormValidation;
 use phpOMS\Utils\Parser\Markdown\Markdown;
+use phpOMS\Message\Http\RequestStatusCode;
 
 /**
  * Comments controller class.
diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index 28c79ef..2c21747 100755
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -24,6 +24,7 @@ use phpOMS\Message\RequestAbstract;
 use phpOMS\Message\ResponseAbstract;
 use phpOMS\Model\Message\FormValidation;
 use phpOMS\Views\View;
+use phpOMS\Message\Http\RequestStatusCode;
 
 /**
  * Calendar controller class.
diff --git a/Models/CommentMapper.php b/Models/CommentMapper.php
index 7a160f8..70e58b3 100755
--- a/Models/CommentMapper.php
+++ b/Models/CommentMapper.php
@@ -48,7 +48,7 @@ final class CommentMapper extends DataMapperAbstract
     /**
      * Belongs to.
      *
-     * @var array<string, array{mapper:string, self:string}>
+     * @var array<string, array{mapper:string, external:string}>
      * @since 1.0.0
      */
     protected static array $belongsTo = [