diff --git a/.php-cs-fixer.dist.php b/.php-cs-fixer.dist.php
index 29cde25..54bc56c 100644
--- a/.php-cs-fixer.dist.php
+++ b/.php-cs-fixer.dist.php
@@ -22,6 +22,7 @@
     ->setFinder($finder)
     ->setRules([
         'static_lambda' => true,
+        '@PER-CS' => true,
     ])
     ->setCacheFile(__DIR__ . '/var/.php-cs-fixer.cache');
 
diff --git a/app.php b/app.php
index b12648f..1b04eb6 100644
--- a/app.php
+++ b/app.php
@@ -7,6 +7,6 @@
 try {
     $core = new App\Action();
     $core->run();
-} catch (Exception $e) {
-    // echo $e->getMessage();
+} catch (Exception) {
+    // echo 'Error: ' . $e->getMessage() . "\n" . 'Trace: ' . $e->getTraceAsString();
 }
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index c02aa6a..4ae17de 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -22,6 +22,7 @@
     <source restrictDeprecations="true" restrictNotices="true" restrictWarnings="true">
         <include>
             <directory>src</directory>
+            <file>app.php</file>
         </include>
     </source>
 </phpunit>
diff --git a/rector.php b/rector.php
index 20d190e..b0312db 100644
--- a/rector.php
+++ b/rector.php
@@ -10,6 +10,7 @@
     $rectorConfig->parallel();
     $rectorConfig->cacheDirectory(__DIR__ . '/var/rector');
     $rectorConfig->paths([
+        __DIR__ . '/app.php',
         __DIR__ . '/src',
         __DIR__ . '/tests',
     ]);