diff --git a/Handler/OnServer.php b/Handler/OnServer.php
index 42526d7..b891bee 100644
--- a/Handler/OnServer.php
+++ b/Handler/OnServer.php
@@ -5,6 +5,7 @@ namespace Server\Handler;
 use Note\Inject;
 use Kiri\Events\EventDispatch;
 use Kiri\Exception\ConfigException;
+use ReflectionException;
 use Server\Abstracts\Server;
 use Server\Events\OnBeforeShutdown;
 use Server\Events\OnShutdown;
@@ -28,6 +29,7 @@ class OnServer extends Server
 	/**
 	 * @param \Swoole\Server $server
 	 * @throws ConfigException
+	 * @throws ReflectionException
 	 */
 	public function onStart(\Swoole\Server $server)
 	{
@@ -39,6 +41,7 @@ class OnServer extends Server
 
 	/**
 	 * @param \Swoole\Server $server
+	 * @throws ReflectionException
 	 */
 	public function onBeforeShutdown(\Swoole\Server $server)
 	{
@@ -48,6 +51,7 @@ class OnServer extends Server
 
 	/**
 	 * @param \Swoole\Server $server
+	 * @throws ReflectionException
 	 */
 	public function onShutdown(\Swoole\Server $server)
 	{
diff --git a/Handler/OnServerManager.php b/Handler/OnServerManager.php
index ae63797..588662e 100644
--- a/Handler/OnServerManager.php
+++ b/Handler/OnServerManager.php
@@ -4,6 +4,7 @@ namespace Server\Handler;
 
 use Note\Inject;
 use Kiri\Events\EventDispatch;
+use ReflectionException;
 use Server\Abstracts\Server;
 use Kiri\Exception\ConfigException;
 use Server\Events\OnManagerStart;
@@ -26,8 +27,8 @@ class OnServerManager extends Server
 
 	/**
      * @param \Swoole\Server $server
-     * @throws ConfigException
-     */
+     * @throws ConfigException|ReflectionException
+	 */
 	public function onManagerStart(\Swoole\Server $server)
 	{
         $this->setProcessName(sprintf('manger[%d].0', $server->manager_pid));
@@ -38,6 +39,7 @@ class OnServerManager extends Server
 
 	/**
 	 * @param \Swoole\Server $server
+	 * @throws ReflectionException
 	 */
 	public function onManagerStop(\Swoole\Server $server)
 	{
diff --git a/Handler/OnServerReload.php b/Handler/OnServerReload.php
index 0e9e43e..e39c920 100644
--- a/Handler/OnServerReload.php
+++ b/Handler/OnServerReload.php
@@ -25,6 +25,7 @@ class OnServerReload
 
 	/**
 	 * @param Server $server
+	 * @throws \ReflectionException
 	 */
 	public function onBeforeReload(Server $server)
 	{
@@ -34,6 +35,7 @@ class OnServerReload
 
 	/**
 	 * @param Server $server
+	 * @throws \ReflectionException
 	 */
 	public function onAfterReload(Server $server)
 	{
diff --git a/Handler/OnServerWorker.php b/Handler/OnServerWorker.php
index 20ffe15..0cecc9a 100644
--- a/Handler/OnServerWorker.php
+++ b/Handler/OnServerWorker.php
@@ -2,12 +2,12 @@
 
 namespace Server\Handler;
 
-use Note\Inject;
 use Exception;
 use Kiri\Abstracts\Config;
 use Kiri\Core\Help;
 use Kiri\Events\EventDispatch;
 use Kiri\Kiri;
+use Note\Inject;
 use Server\Events\OnAfterWorkerStart;
 use Server\Events\OnBeforeWorkerStart;
 use Server\Events\OnTaskerStart as OnTaskStart;
@@ -62,8 +62,8 @@ class OnServerWorker extends \Server\Abstracts\Server
 	 */
 	public function onWorkerStop(Server $server, int $workerId)
 	{
-        Timer::clearAll();
-        $this->eventDispatch->dispatch(new OnWorkerStop($server, $workerId));
+		Timer::clearAll();
+		$this->eventDispatch->dispatch(new OnWorkerStop($server, $workerId));
 	}
 
 
@@ -76,8 +76,8 @@ class OnServerWorker extends \Server\Abstracts\Server
 	{
 		set_env('state', 'exit');
 
-        $this->eventDispatch->dispatch(new OnWorkerExit($server, $workerId));
-    }
+		$this->eventDispatch->dispatch(new OnWorkerExit($server, $workerId));
+	}
 
 
 	/**
@@ -98,7 +98,7 @@ class OnServerWorker extends \Server\Abstracts\Server
 
 		$this->logger->error($message);
 
-//		$this->system_mail($message);
+		$this->system_mail($message);
 	}
 
 
@@ -109,7 +109,7 @@ class OnServerWorker extends \Server\Abstracts\Server
 	protected function system_mail($messageContent)
 	{
 		try {
-			$email = Config::get('email');
+			$email = Config::get('email', ['enable' => false]);
 			if (!empty($email) && ($email['enable'] ?? false) == true) {
 				Help::sendEmail($email, 'Service Error', $messageContent);
 			}
diff --git a/ServerCommand.php b/ServerCommand.php
index f87b4eb..11d5d54 100644
--- a/ServerCommand.php
+++ b/ServerCommand.php
@@ -10,6 +10,8 @@ use Kiri\Abstracts\Config;
 use Kiri\Events\EventDispatch;
 use Kiri\Exception\ConfigException;
 use Kiri\Kiri;
+use Psr\Container\ContainerExceptionInterface;
+use Psr\Container\NotFoundExceptionInterface;
 use Server\Events\OnServerBeforeStart;
 use Swoole\Coroutine;
 use Symfony\Component\Console\Command\Command;
@@ -52,6 +54,10 @@ class ServerCommand extends Command
 	 * @param InputInterface $input
 	 * @param OutputInterface $output
 	 * @return int
+	 * @throws ConfigException
+	 * @throws ContainerExceptionInterface
+	 * @throws NotFoundExceptionInterface
+	 * @throws \ReflectionException
 	 * @throws Exception
 	 */
 	public function execute(InputInterface $input, OutputInterface $output): int
diff --git a/Tasker/OnServerTask.php b/Tasker/OnServerTask.php
index b3646ad..333a2f9 100644
--- a/Tasker/OnServerTask.php
+++ b/Tasker/OnServerTask.php
@@ -7,7 +7,6 @@ namespace Server\Tasker;
 use Note\Inject;
 use Kiri\Abstracts\Logger;
 use Kiri\Exception\ConfigException;
-use ReflectionException;
 use Server\Contract\OnTaskInterface;
 use Swoole\Server;