diff --git a/frontend/src/pages/PositionList.tsx b/frontend/src/pages/PositionList.tsx
index 5a9748f..4b1660e 100644
--- a/frontend/src/pages/PositionList.tsx
+++ b/frontend/src/pages/PositionList.tsx
@@ -965,7 +965,6 @@ const PositionList: React.FC = () => {
         key: 'valueAndPnl',
         render: (_: any, record: AccountPosition) => {
           const pnlNum = parseFloat(record.pnl || '0')
-          const percentPnl = parseFloat(record.percentPnl || '0')
           const realizedPnl = record.realizedPnl ? parseFloat(record.realizedPnl) : null
           const percentRealizedPnl = record.percentRealizedPnl ? parseFloat(record.percentRealizedPnl) : null
 
diff --git a/frontend/src/pages/SystemSettings.tsx b/frontend/src/pages/SystemSettings.tsx
index 6652332..40c7830 100644
--- a/frontend/src/pages/SystemSettings.tsx
+++ b/frontend/src/pages/SystemSettings.tsx
@@ -1,7 +1,7 @@
 import { useEffect, useState } from 'react'
 import { useNavigate } from 'react-router-dom'
-import { Card, Form, Button, Switch, Input, InputNumber, message, Typography, Space, Alert, Select, Table, Tag, Popconfirm, Modal } from 'antd'
-import { SaveOutlined, CheckCircleOutlined, ReloadOutlined, GlobalOutlined, NotificationOutlined, KeyOutlined, LinkOutlined, PlusOutlined, EditOutlined, DeleteOutlined, SendOutlined, RightOutlined } from '@ant-design/icons'
+import { Card, Form, Button, Switch, Input, InputNumber, message, Typography, Space, Alert, Select } from 'antd'
+import { SaveOutlined, CheckCircleOutlined, ReloadOutlined, GlobalOutlined, NotificationOutlined, KeyOutlined, LinkOutlined, RightOutlined } from '@ant-design/icons'
 import { apiService } from '../services/api'
 import { useMediaQuery } from 'react-responsive'
 import { useTranslation } from 'react-i18next'