diff --git a/HttpServer/Events/OnClose.php b/HttpServer/Events/OnClose.php
index 22e65d5a..9c8e7db4 100644
--- a/HttpServer/Events/OnClose.php
+++ b/HttpServer/Events/OnClose.php
@@ -32,8 +32,14 @@ class OnClose extends Callback
 	 */
 	public function onHandler(Server $server, int $fd)
 	{
-		$this->execute($server, $fd);
-		fire(Event::SYSTEM_RESOURCE_RELEASES);
+		try {
+			$this->execute($server, $fd);
+		} catch (\Throwable $exception) {
+			$this->addError($exception);
+		} finally {
+			fire(Event::SYSTEM_RESOURCE_RELEASES);
+			logger()->insert();
+		}
 	}
 
 
@@ -45,18 +51,11 @@ class OnClose extends Callback
 	 */
 	private function execute(Server $server, int $fd): void
 	{
-		try {
-			if (!$this->isWebsocket($server, $fd)) {
-				$client = $server->getClientInfo($fd);
-				fire($this->name($client['server_port']), [$server, $fd]);
-			} else {
-				$this->loadNode($server, $fd);
-			}
-		} catch (\Throwable $exception) {
-			$this->addError($exception);
-		} finally {
-			fire(Event::SYSTEM_RESOURCE_RELEASES);
-			logger()->insert();
+		if (!$this->isWebsocket($server, $fd)) {
+			$client = $server->getClientInfo($fd);
+			fire($this->name($client['server_port']), [$server, $fd]);
+		} else {
+			$this->loadNode($server, $fd);
 		}
 	}
 
diff --git a/HttpServer/Events/OnConnect.php b/HttpServer/Events/OnConnect.php
index 98239f9e..8cd63032 100644
--- a/HttpServer/Events/OnConnect.php
+++ b/HttpServer/Events/OnConnect.php
@@ -30,9 +30,13 @@ class OnConnect extends Callback
 
 		$clientInfo = $server->getClientInfo($fd);
 
-		$name = 'listen ' . $clientInfo['server_port'] . ' ' . Event::RECEIVE_CONNECTION;
+		try {
+			$name = 'listen ' . $clientInfo['server_port'] . ' ' . Event::RECEIVE_CONNECTION;
 
-		$event->trigger($name, [$server, $fd, $reactorId]);
+			$event->trigger($name, [$server, $fd, $reactorId]);
+		} catch (\Throwable $throwable) {
+			$this->addError($throwable, 'connect');
+		}
 
 		fire(Event::SYSTEM_RESOURCE_RELEASES);
 		logger()->insert();
diff --git a/HttpServer/Events/OnPacket.php b/HttpServer/Events/OnPacket.php
index c5f8117a..3fee2f95 100644
--- a/HttpServer/Events/OnPacket.php
+++ b/HttpServer/Events/OnPacket.php
@@ -50,6 +50,8 @@ class OnPacket extends Callback
 
 			return $server->sendto($host, $port, $dispatch);
 		} catch (\Throwable $exception) {
+			$this->addError($exception, 'packet');
+
 			$response = Json::encode(['state' => 500, 'message' => $exception->getMessage()]);
 
 			return $server->sendto($clientInfo['address'], $clientInfo['port'], $response);
diff --git a/HttpServer/Events/OnReceive.php b/HttpServer/Events/OnReceive.php
index 4a37a572..7ace506b 100644
--- a/HttpServer/Events/OnReceive.php
+++ b/HttpServer/Events/OnReceive.php
@@ -48,6 +48,8 @@ class OnReceive extends Callback
 
 			return $server->send($fd, $dispatch);
 		} catch (\Throwable $exception) {
+			$this->addError($exception, 'receive');
+
 			return $server->send($fd, Json::encode(['state' => 500, 'message' => $exception->getMessage()]));
 		} finally {
 			$event = Snowflake::app()->getEvent();
diff --git a/System/Abstracts/Pool.php b/System/Abstracts/Pool.php
index 555b8a65..31ae59fd 100644
--- a/System/Abstracts/Pool.php
+++ b/System/Abstracts/Pool.php
@@ -288,7 +288,6 @@ abstract class Pool extends Component
 		$this->pop($channel, $name, 0);
 		if ($this->creates > -1) {
 			Timer::clear($this->creates);
-			$this->debug('clean timer.');
 		}
 		$this->_items[$name] = null;
 	}