diff --git a/STranslateDLL/LocalMode.cs b/STranslateDLL/LocalMode.cs
index 2982804..02c0623 100644
--- a/STranslateDLL/LocalMode.cs
+++ b/STranslateDLL/LocalMode.cs
@@ -13,7 +13,6 @@ public static class LocalMode
         CancellationToken? token = null
     )
     {
-        Utilities.Initial();
         var getToken = token ?? CancellationToken.None;
         var splitResult = await SplitTextAsync(content, getToken);
 
diff --git a/STranslateDLL/Utilities.cs b/STranslateDLL/Utilities.cs
index ed58009..e6b9820 100644
--- a/STranslateDLL/Utilities.cs
+++ b/STranslateDLL/Utilities.cs
@@ -7,8 +7,6 @@ namespace STranslateDLL;
 public static class Utilities
 {
     public const string Url = "https://www2.deepl.com/jsonrpc";
-    private static long _nextId;
-    private static bool _hasInit;
 
     public static readonly Dictionary<bool, string> TextTypeDic = new()
     {
@@ -21,7 +19,7 @@ public static class Utilities
         {
             Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping,
             DefaultIgnoreCondition = JsonIgnoreCondition.WhenWritingDefault,
-            WriteIndented = true
+            // WriteIndented = true
         };
 
     public static string Serialize(object data)
@@ -29,17 +27,6 @@ public static class Utilities
         return JsonSerializer.Serialize(data, GetOptions);
     }
 
-    public static void Initial()
-    {
-        if (_hasInit) return;
-
-        var rand = new Random();
-        var number = rand.NextInt64(99999) + 8300000;
-        _nextId = number * 1000;
-
-        _hasInit = true;
-    }
-
     public static bool IsRichText(string text)
     {
         return text.Contains('<') && text.Contains('>');
@@ -54,7 +41,9 @@ public static class Utilities
 
     public static long CreateId()
     {
-        return Interlocked.Increment(ref _nextId);
+        var rand = new Random();
+        var number = rand.NextInt64(99999) + 8300000;
+        return number * 1000;
     }
 
     public static string AdjustJsonContent(string json, long id)