diff --git a/v2rayN/ServiceLib/Handler/ConfigHandler.cs b/v2rayN/ServiceLib/Handler/ConfigHandler.cs
index 5920a1f8..745bf959 100644
--- a/v2rayN/ServiceLib/Handler/ConfigHandler.cs
+++ b/v2rayN/ServiceLib/Handler/ConfigHandler.cs
@@ -383,7 +383,7 @@ namespace ServiceLib.Handler
             }
 
             var item = await SQLiteHelper.Instance.TableAsync<ProfileItem>().FirstOrDefaultAsync(t => t.Port > 0);
-            return await SetDefaultServerIndex(config, item.IndexId);
+            return await SetDefaultServerIndex(config, item?.IndexId);
         }
 
         public static async Task<ProfileItem?> GetDefaultServer(Config config)
diff --git a/v2rayN/v2rayN.Desktop/Views/SubSettingWindow.axaml b/v2rayN/v2rayN.Desktop/Views/SubSettingWindow.axaml
index 7d43eb37..6e4ad3a9 100644
--- a/v2rayN/v2rayN.Desktop/Views/SubSettingWindow.axaml
+++ b/v2rayN/v2rayN.Desktop/Views/SubSettingWindow.axaml
@@ -53,7 +53,7 @@
                         Binding="{Binding Remarks}"
                         Header="{x:Static resx:ResUI.LvRemarks}" />
                     <DataGridTextColumn
-                        Width="150"
+                        Width="*"
                         Binding="{Binding Url}"
                         Header="{x:Static resx:ResUI.LvUrl}" />
                     <DataGridCheckBoxColumn
diff --git a/v2rayN/v2rayN/Views/SubSettingWindow.xaml b/v2rayN/v2rayN/Views/SubSettingWindow.xaml
index 0d73e52c..c34fde49 100644
--- a/v2rayN/v2rayN/Views/SubSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/SubSettingWindow.xaml
@@ -96,7 +96,7 @@
                         Binding="{Binding Remarks}"
                         Header="{x:Static resx:ResUI.LvRemarks}" />
                     <DataGridTextColumn
-                        Width="150"
+                        Width="*"
                         Binding="{Binding Url}"
                         Header="{x:Static resx:ResUI.LvUrl}" />
                     <DataGridCheckBoxColumn