diff --git a/v2rayN/ServiceLib/Handler/WebDavHandler.cs b/v2rayN/ServiceLib/Handler/WebDavHandler.cs
index 526a7028..fd1d5e55 100644
--- a/v2rayN/ServiceLib/Handler/WebDavHandler.cs
+++ b/v2rayN/ServiceLib/Handler/WebDavHandler.cs
@@ -100,6 +100,7 @@ namespace ServiceLib.Handler
             }
             else
             {
+                SaveLog(result.Description);
                 return false;
             }
         }
diff --git a/v2rayN/v2rayN.Desktop/Views/CheckUpdateView.axaml.cs b/v2rayN/v2rayN.Desktop/Views/CheckUpdateView.axaml.cs
index ea1c0ddf..a11a72fa 100644
--- a/v2rayN/v2rayN.Desktop/Views/CheckUpdateView.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/CheckUpdateView.axaml.cs
@@ -28,7 +28,7 @@ namespace v2rayN.Desktop.Views
             switch (action)
             {
                 case EViewAction.DispatcherCheckUpdate:
-                    if (obj is null) return false;                   
+                    if (obj is null) return false;
                     Dispatcher.UIThread.Post(() =>
                         ViewModel?.UpdateViewResult((CheckUpdateItem)obj),
                     DispatcherPriority.Default);
diff --git a/v2rayN/v2rayN/Views/BackupAndRestoreView.xaml.cs b/v2rayN/v2rayN/Views/BackupAndRestoreView.xaml.cs
index 029048b8..5bc930dd 100644
--- a/v2rayN/v2rayN/Views/BackupAndRestoreView.xaml.cs
+++ b/v2rayN/v2rayN/Views/BackupAndRestoreView.xaml.cs
@@ -21,7 +21,7 @@ namespace v2rayN.Views
             this.WhenActivated(disposables =>
             {
                 this.Bind(ViewModel, vm => vm.OperationMsg, v => v.txtMsg.Text).DisposeWith(disposables);
-                
+
                 this.Bind(ViewModel, vm => vm.SelectedSource.url, v => v.txtWebDavUrl.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SelectedSource.userName, v => v.txtWebDavUserName.Text).DisposeWith(disposables);
                 this.Bind(ViewModel, vm => vm.SelectedSource.password, v => v.txtWebDavPassword.Text).DisposeWith(disposables);
diff --git a/v2rayN/v2rayN/Views/CheckUpdateView.xaml b/v2rayN/v2rayN/Views/CheckUpdateView.xaml
index fcbe2552..0f101a0d 100644
--- a/v2rayN/v2rayN/Views/CheckUpdateView.xaml
+++ b/v2rayN/v2rayN/Views/CheckUpdateView.xaml
@@ -21,18 +21,18 @@
             DockPanel.Dock="Bottom"
             Orientation="Horizontal">
 
-            <TextBlock               
+            <TextBlock
                 Margin="{StaticResource SettingItemMargin}"
                 VerticalAlignment="Center"
                 Style="{StaticResource ToolbarTextBlock}"
                 Text="{x:Static resx:ResUI.TbSettingsEnableCheckPreReleaseUpdate}" />
             <ToggleButton
-                x:Name="togEnableCheckPreReleaseUpdate"          
+                x:Name="togEnableCheckPreReleaseUpdate"
                 Margin="{StaticResource SettingItemMargin}"
                 HorizontalAlignment="Left" />
 
             <Button
-                x:Name="btnCheckUpdate"           
+                x:Name="btnCheckUpdate"
                 Width="100"
                 Margin="8"
                 Content="{x:Static resx:ResUI.menuCheckUpdate}"
@@ -40,7 +40,7 @@
                 IsDefault="True"
                 Style="{StaticResource MaterialDesignFlatButton}" />
 
-            <Button        
+            <Button
                 Width="100"
                 Margin="8"
                 HorizontalAlignment="Right"
diff --git a/v2rayN/v2rayN/Views/ProfilesView.xaml.cs b/v2rayN/v2rayN/Views/ProfilesView.xaml.cs
index b6d0ee76..625dadf6 100644
--- a/v2rayN/v2rayN/Views/ProfilesView.xaml.cs
+++ b/v2rayN/v2rayN/Views/ProfilesView.xaml.cs
@@ -1,5 +1,4 @@
 using MaterialDesignThemes.Wpf;
-using Microsoft.Win32;
 using ReactiveUI;
 using Splat;
 using System.Reactive.Disposables;