diff --git a/engine/RequestDispatcher.php b/engine/RequestDispatcher.php
index ec31516..adb61c9 100644
--- a/engine/RequestDispatcher.php
+++ b/engine/RequestDispatcher.php
@@ -7,6 +7,8 @@ class RequestDispatcher {
     ) {}
 
     public function dispatch(): void {
+        global $config;
+
         try {
             if (!in_array($_SERVER['REQUEST_METHOD'], ['POST', 'GET']))
                 throw new NotImplementedException('Method '.$_SERVER['REQUEST_METHOD'].' not implemented');
@@ -27,7 +29,7 @@ class RequestDispatcher {
             $handler_class = 'handler\\'.$handler_class;
 
             if (!class_exists($handler_class))
-                throw new NotFoundException('Handler class "'.$handler_class.'" not found');
+                throw new NotFoundException($config['is_dev'] ? 'Handler class "'.$handler_class.'" not found' : '');
 
             $router_input = [];
             if (count($route) > 1) {
diff --git a/skin/error.skin.php b/skin/error.skin.php
index b0925d3..5276bfa 100644
--- a/skin/error.skin.php
+++ b/skin/error.skin.php
@@ -29,10 +29,10 @@ return <<<HTML
     <head><title>$code $title</title></head>
     <body>
         <center><h1>$code $title</h1></center>
+        <hr>
         {$ctx->if_true($message, 
-            '<hr><p align="center">'.$message.'</p>'
+            '<p align="center">'.$message.'</p>'
         )}
-        
     </body>
 </html>
 HTML;
