diff --git a/v2rayN/ServiceLib/Manager/AppManager.cs b/v2rayN/ServiceLib/Manager/AppManager.cs
index 1951cce0..e4d53c3e 100644
--- a/v2rayN/ServiceLib/Manager/AppManager.cs
+++ b/v2rayN/ServiceLib/Manager/AppManager.cs
@@ -262,8 +262,11 @@ public sealed class AppManager
     public async Task MigrateProfileExtra()
     {
 #pragma warning disable CS0618
+        var list = await SQLiteHelper.Instance.TableAsync<ProfileGroupItem>().ToListAsync();
+        var groupItems = new ConcurrentDictionary<string, ProfileGroupItem>(list.Where(t => !string.IsNullOrEmpty(t.IndexId)).ToDictionary(t => t.IndexId!));
+
         const int pageSize = 500;
-        int offset = 0;
+        var offset = 0;
 
         while (true)
         {
@@ -286,7 +289,7 @@ public sealed class AppManager
                 if (item.ConfigType is EConfigType.PolicyGroup or EConfigType.ProxyChain)
                 {
                     extra.GroupType = nameof(item.ConfigType);
-                    ProfileGroupItemManager.Instance.TryGet(item.IndexId, out var groupItem);
+                    groupItems.TryGetValue(item.IndexId, out var groupItem);
                     if (groupItem != null && !groupItem.NotHasChild())
                     {
                         extra.ChildItems = groupItem.ChildItems;
diff --git a/v2rayN/ServiceLib/Manager/ProfileGroupItemManager.cs b/v2rayN/ServiceLib/Manager/ProfileGroupItemManager.cs
deleted file mode 100644
index 97b037d1..00000000
--- a/v2rayN/ServiceLib/Manager/ProfileGroupItemManager.cs
+++ /dev/null
@@ -1,46 +0,0 @@
-namespace ServiceLib.Manager;
-
-[Obsolete("Use GroupProfileManager instead.")]
-public class ProfileGroupItemManager
-{
-    private static readonly Lazy<ProfileGroupItemManager> _instance = new(() => new());
-    private ConcurrentDictionary<string, ProfileGroupItem> _items = new();
-
-    public static ProfileGroupItemManager Instance => _instance.Value;
-    private static readonly string _tag = "ProfileGroupItemManager";
-
-    private ProfileGroupItemManager()
-    {
-    }
-
-    public async Task Init()
-    {
-        await InitData();
-    }
-
-    // Read-only getters: do not create or mark dirty
-    public bool TryGet(string indexId, out ProfileGroupItem? item)
-    {
-        item = null;
-        if (string.IsNullOrWhiteSpace(indexId))
-        {
-            return false;
-        }
-
-        return _items.TryGetValue(indexId, out item);
-    }
-
-    private async Task InitData()
-    {
-        await SQLiteHelper.Instance.ExecuteAsync($"delete from ProfileGroupItem where IndexId not in ( select indexId from ProfileItem )");
-
-        var list = await SQLiteHelper.Instance.TableAsync<ProfileGroupItem>().ToListAsync();
-        _items = new ConcurrentDictionary<string, ProfileGroupItem>(list.Where(t => !string.IsNullOrEmpty(t.IndexId)).ToDictionary(t => t.IndexId!));
-    }
-
-    public async Task ClearAll()
-    {
-        await SQLiteHelper.Instance.ExecuteAsync($"delete from ProfileGroupItem ");
-        _items.Clear();
-    }
-}
diff --git a/v2rayN/ServiceLib/ViewModels/MainWindowViewModel.cs b/v2rayN/ServiceLib/ViewModels/MainWindowViewModel.cs
index a09ad4de..8f5e9029 100644
--- a/v2rayN/ServiceLib/ViewModels/MainWindowViewModel.cs
+++ b/v2rayN/ServiceLib/ViewModels/MainWindowViewModel.cs
@@ -259,7 +259,6 @@ public class MainWindowViewModel : MyReactiveObject
         await ConfigHandler.InitBuiltinDNS(_config);
         await ConfigHandler.InitBuiltinFullConfigTemplate(_config);
         await ProfileExManager.Instance.Init();
-        await ProfileGroupItemManager.Instance.Init();
         await CoreManager.Instance.Init(_config, UpdateHandler);
         TaskManager.Instance.RegUpdateTask(_config, UpdateTaskHandler);