diff --git a/HttpServer/Events/OnShutdown.php b/HttpServer/Events/OnShutdown.php
index 95c35a5a..7fe7f809 100644
--- a/HttpServer/Events/OnShutdown.php
+++ b/HttpServer/Events/OnShutdown.php
@@ -33,6 +33,7 @@ class OnShutdown extends Callback
 	 */
 	public function onHandler(Server $server)
 	{
+		$this->debug('server shutdown~');
 		$this->system_mail('server shutdown~');
 		$event = Snowflake::app()->getEvent();
 		$event->trigger(Event::SERVER_SHUTDOWN);
diff --git a/System/Error/ErrorHandler.php b/System/Error/ErrorHandler.php
index c09ab526..c56f4e22 100644
--- a/System/Error/ErrorHandler.php
+++ b/System/Error/ErrorHandler.php
@@ -62,17 +62,6 @@ class ErrorHandler extends Component implements ErrorInterface
 
 		$message = array_shift($messages);
 
-		$workers = glob(storage(null, 'worker') . '/*');
-		foreach ($workers as $worker) {
-			$content = file_get_contents($worker);
-			posix_kill($content, 9);
-		}
-
-		$content = '[error]: ' . date('Y-m-d H:i:s') . PHP_EOL;
-		$content .= print_r($lastError, true);
-
-		Snowflake::writeFile(storage('shutdown.log'), $content, FILE_APPEND);
-
 		$this->sendError($message, $lastError['file'], $lastError['line']);
 	}