diff --git a/app/command/admin/Worker.php b/app/command/admin/Worker.php
index d68a2bc..f88dfc2 100644
--- a/app/command/admin/Worker.php
+++ b/app/command/admin/Worker.php
@@ -87,17 +87,19 @@ class Worker extends Command
                             'client_name'=> $connection->clientName,
                             'user_id'    => $connection->userId,
                         ])->find();
-                        $client->update(['is_lock'=>1,'lock_password'=>$lock_password,'lock_time'=>date('Y-m-d H:i:s')]);
-                        // 锁定屏幕
-                        $connection->send(json_encode(['event'=>'LOCK_CLIENT_SCREEN']));
+                        if($client) {
+                            $client->save(['is_lock'=>1,'lock_password'=>$lock_password,'lock_time'=>date('Y-m-d H:i:s')]);
+                            // 锁定屏幕
+                            $connection->send(json_encode(['event'=>'LOCK_CLIENT_SCREEN']));
 
-                        SysUserClientLog::create([
-                            'event'  => 'UNLOCK',
-                            'message'=> "A. 锁定客户端",
-                            'data'   => json_encode(['inputPass'=> $lock_password]),
-                            'create_time' => date('Y-m-d H:i:s'),
-                            'client_data_id'=> $client['id']
-                        ]);
+                            SysUserClientLog::create([
+                                'event'  => 'UNLOCK',
+                                'message'=> "A. 锁定客户端",
+                                'data'   => json_encode(['inputPass'=> $lock_password]),
+                                'create_time' => date('Y-m-d H:i:s'),
+                                'client_data_id'=> $client['id']
+                            ]);
+                        }
                     }
                 }
             }