diff --git a/v2rayN/v2rayN.Desktop/App.axaml.cs b/v2rayN/v2rayN.Desktop/App.axaml.cs
index b797c90b..7626edfd 100644
--- a/v2rayN/v2rayN.Desktop/App.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/App.axaml.cs
@@ -43,7 +43,7 @@ public partial class App : Application
     {
         if (e.ExceptionObject != null)
         {
-            Logging.SaveLog("CurrentDomain_UnhandledException", (Exception)e.ExceptionObject!);
+            Logging.SaveLog("CurrentDomain_UnhandledException", (Exception)e.ExceptionObject);
         }
     }
 
diff --git a/v2rayN/v2rayN.Desktop/Views/ClashConnectionsView.axaml.cs b/v2rayN/v2rayN.Desktop/Views/ClashConnectionsView.axaml.cs
index b4426c29..c39724eb 100644
--- a/v2rayN/v2rayN.Desktop/Views/ClashConnectionsView.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/ClashConnectionsView.axaml.cs
@@ -52,9 +52,16 @@ public partial class ClashConnectionsView : ReactiveUserControl<ClashConnections
 
     private void AutofitColumnWidth()
     {
-        foreach (var it in lstConnections.Columns)
+        try
         {
-            it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            foreach (var it in lstConnections.Columns)
+            {
+                it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            }
+        }
+        catch (Exception ex)
+        {
+            Logging.SaveLog("ClashConnectionsView", ex);
         }
     }
 
diff --git a/v2rayN/v2rayN.Desktop/Views/ProfilesView.axaml.cs b/v2rayN/v2rayN.Desktop/Views/ProfilesView.axaml.cs
index 6414b40d..e225cc65 100644
--- a/v2rayN/v2rayN.Desktop/Views/ProfilesView.axaml.cs
+++ b/v2rayN/v2rayN.Desktop/Views/ProfilesView.axaml.cs
@@ -345,9 +345,16 @@ public partial class ProfilesView : ReactiveUserControl<ProfilesViewModel>
 
     private void AutofitColumnWidth()
     {
-        foreach (var it in lstProfiles.Columns)
+        try
         {
-            it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            foreach (var it in lstProfiles.Columns)
+            {
+                it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            }
+        }
+        catch (Exception ex)
+        {
+            Logging.SaveLog("ProfilesView", ex);
         }
     }
 
diff --git a/v2rayN/v2rayN/App.xaml.cs b/v2rayN/v2rayN/App.xaml.cs
index 86518fa0..0a282733 100644
--- a/v2rayN/v2rayN/App.xaml.cs
+++ b/v2rayN/v2rayN/App.xaml.cs
@@ -56,7 +56,7 @@ public partial class App : Application
     {
         if (e.ExceptionObject != null)
         {
-            Logging.SaveLog("CurrentDomain_UnhandledException", (Exception)e.ExceptionObject!);
+            Logging.SaveLog("CurrentDomain_UnhandledException", (Exception)e.ExceptionObject);
         }
     }
 
diff --git a/v2rayN/v2rayN/Views/ClashConnectionsView.xaml.cs b/v2rayN/v2rayN/Views/ClashConnectionsView.xaml.cs
index 54f3adee..18b97d2a 100644
--- a/v2rayN/v2rayN/Views/ClashConnectionsView.xaml.cs
+++ b/v2rayN/v2rayN/Views/ClashConnectionsView.xaml.cs
@@ -55,9 +55,16 @@ public partial class ClashConnectionsView
 
     private void AutofitColumnWidth()
     {
-        foreach (var it in lstConnections.Columns)
+        try
         {
-            it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            foreach (var it in lstConnections.Columns)
+            {
+                it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            }
+        }
+        catch (Exception ex)
+        {
+            Logging.SaveLog("ClashConnectionsView", ex);
         }
     }
 
diff --git a/v2rayN/v2rayN/Views/ProfilesView.xaml.cs b/v2rayN/v2rayN/Views/ProfilesView.xaml.cs
index daefd332..3501747e 100644
--- a/v2rayN/v2rayN/Views/ProfilesView.xaml.cs
+++ b/v2rayN/v2rayN/Views/ProfilesView.xaml.cs
@@ -323,9 +323,16 @@ public partial class ProfilesView
 
     private void AutofitColumnWidth()
     {
-        foreach (var it in lstProfiles.Columns)
+        try
         {
-            it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            foreach (var it in lstProfiles.Columns)
+            {
+                it.Width = new DataGridLength(1, DataGridLengthUnitType.Auto);
+            }
+        }
+        catch (Exception ex)
+        {
+            Logging.SaveLog("ProfilesView", ex);
         }
     }