diff --git a/v2rayN/ServiceLib/Services/ActionPrecheckService.cs b/v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs
similarity index 95%
rename from v2rayN/ServiceLib/Services/ActionPrecheckService.cs
rename to v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs
index d5380c69..69c0b915 100644
--- a/v2rayN/ServiceLib/Services/ActionPrecheckService.cs
+++ b/v2rayN/ServiceLib/Manager/ActionPrecheckManager.cs
@@ -1,14 +1,12 @@
-using DynamicData;
-
-namespace ServiceLib.Services;
+namespace ServiceLib.Manager;
 
 /// <summary>
 /// Centralized pre-checks before sensitive actions (set active profile, generate config, etc.).
 /// </summary>
-public class ActionPrecheckService(Config config)
+public class ActionPrecheckManager(Config config)
 {
-    private static readonly Lazy<ActionPrecheckService> _instance = new(() => new ActionPrecheckService(AppManager.Instance.Config));
-    public static ActionPrecheckService Instance => _instance.Value;
+    private static readonly Lazy<ActionPrecheckManager> _instance = new(() => new ActionPrecheckManager(AppManager.Instance.Config));
+    public static ActionPrecheckManager Instance => _instance.Value;
 
     private readonly Config _config = config;
 
@@ -88,7 +86,7 @@ public class ActionPrecheckService(Config config)
                     break;
 
                 case EConfigType.VLESS:
-                    if (item.Id.IsNullOrEmpty() || (!Utils.IsGuidByParse(item.Id) && item.Id.Length > 30))
+                    if (item.Id.IsNullOrEmpty() || !Utils.IsGuidByParse(item.Id) && item.Id.Length > 30)
                         errors.Add(string.Format(ResUI.InvalidProperty, "Id"));
                     if (!Global.Flows.Contains(item.Flow))
                         errors.Add(string.Format(ResUI.InvalidProperty, "Flow"));
@@ -102,7 +100,7 @@ public class ActionPrecheckService(Config config)
                     break;
             }
 
-            if ((item.ConfigType is EConfigType.VLESS or EConfigType.Trojan)
+            if (item.ConfigType is EConfigType.VLESS or EConfigType.Trojan
                 && item.StreamSecurity == Global.StreamSecurityReality
                 && item.PublicKey.IsNullOrEmpty())
             {
diff --git a/v2rayN/ServiceLib/Resx/ResUI.Designer.cs b/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
index 25fb9b85..6b4257a1 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
+++ b/v2rayN/ServiceLib/Resx/ResUI.Designer.cs
@@ -304,7 +304,7 @@ namespace ServiceLib.Resx {
         }
         
         /// <summary>
-        ///   查找类似 The group &quot;{0}&quot; cannot reference itself. 的本地化字符串。
+        ///   查找类似 {0} Group cannot reference itself or have a circular reference 的本地化字符串。
         /// </summary>
         public static string GroupSelfReference {
             get {
diff --git a/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx b/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
index 449cb297..ae08f28d 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.fa-Ir.resx
@@ -1588,7 +1588,7 @@
     <value>The {0} property is invalid, please check.</value>
   </data>
   <data name="GroupSelfReference" xml:space="preserve">
-    <value>The group "{0}" cannot reference itself.</value>
+    <value>{0} Group cannot reference itself or have a circular reference</value>
   </data>
   <data name="NotSupportProtocol" xml:space="preserve">
     <value>Not support protocol '{0}'.</value>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.hu.resx b/v2rayN/ServiceLib/Resx/ResUI.hu.resx
index 9b7ca556..00fbced7 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.hu.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.hu.resx
@@ -1588,7 +1588,7 @@
     <value>The {0} property is invalid, please check.</value>
   </data>
   <data name="GroupSelfReference" xml:space="preserve">
-    <value>The group "{0}" cannot reference itself.</value>
+    <value>{0} Group cannot reference itself or have a circular reference</value>
   </data>
   <data name="NotSupportProtocol" xml:space="preserve">
     <value>Not support protocol '{0}'.</value>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.resx b/v2rayN/ServiceLib/Resx/ResUI.resx
index d6688de8..5b08c334 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.resx
@@ -1588,7 +1588,7 @@
     <value>The {0} property is invalid, please check.</value>
   </data>
   <data name="GroupSelfReference" xml:space="preserve">
-    <value>The group "{0}" cannot reference itself.</value>
+    <value>{0} Group cannot reference itself or have a circular reference</value>
   </data>
   <data name="NotSupportProtocol" xml:space="preserve">
     <value>Not support protocol '{0}'.</value>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.ru.resx b/v2rayN/ServiceLib/Resx/ResUI.ru.resx
index 5cf44f3a..e82d874f 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.ru.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.ru.resx
@@ -1588,7 +1588,7 @@
     <value>The {0} property is invalid, please check.</value>
   </data>
   <data name="GroupSelfReference" xml:space="preserve">
-    <value>The group "{0}" cannot reference itself.</value>
+    <value>{0} Group cannot reference itself or have a circular reference</value>
   </data>
   <data name="NotSupportProtocol" xml:space="preserve">
     <value>Not support protocol '{0}'.</value>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx b/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
index dd5b8bda..404354ef 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.zh-Hans.resx
@@ -1585,7 +1585,7 @@
     <value>{0}属性无效，请检查</value>
   </data>
   <data name="GroupSelfReference" xml:space="preserve">
-    <value>{0} 分组不能引用自身</value>
+    <value>{0} 分组不能引用自身或循环引用</value>
   </data>
   <data name="NotSupportProtocol" xml:space="preserve">
     <value>不支持协议 '{0}'。</value>
diff --git a/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx b/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
index 1510ff67..f3fd34c5 100644
--- a/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
+++ b/v2rayN/ServiceLib/Resx/ResUI.zh-Hant.resx
@@ -1585,7 +1585,7 @@
     <value>The {0} property is invalid, please check.</value>
   </data>
   <data name="GroupSelfReference" xml:space="preserve">
-    <value>The group "{0}" cannot reference itself.</value>
+    <value>{0} 分組不能引用自身或循環引用</value>
   </data>
   <data name="NotSupportProtocol" xml:space="preserve">
     <value>Not support protocol '{0}'.</value>
diff --git a/v2rayN/ServiceLib/ViewModels/ProfilesViewModel.cs b/v2rayN/ServiceLib/ViewModels/ProfilesViewModel.cs
index 546171b2..289dc36e 100644
--- a/v2rayN/ServiceLib/ViewModels/ProfilesViewModel.cs
+++ b/v2rayN/ServiceLib/ViewModels/ProfilesViewModel.cs
@@ -605,7 +605,7 @@ public class ProfilesViewModel : MyReactiveObject
             return;
         }
 
-        var msgs = await ActionPrecheckService.Instance.CheckBeforeSetActive(indexId);
+        var msgs = await ActionPrecheckManager.Instance.CheckBeforeSetActive(indexId);
         foreach (var msg in msgs)
         {
             NoticeManager.Instance.SendMessage(msg);
@@ -779,7 +779,7 @@ public class ProfilesViewModel : MyReactiveObject
             return;
         }
 
-        var msgs = await ActionPrecheckService.Instance.CheckBeforeGenerateConfig(item);
+        var msgs = await ActionPrecheckManager.Instance.CheckBeforeGenerateConfig(item);
         foreach (var msg in msgs)
         {
             NoticeManager.Instance.SendMessage(msg);