diff --git a/HsMod/Patches/PatchHearthstone.cs b/HsMod/Patches/PatchHearthstone.cs
index 70b93d25..e854c645 100644
--- a/HsMod/Patches/PatchHearthstone.cs
+++ b/HsMod/Patches/PatchHearthstone.cs
@@ -106,11 +106,11 @@ private static void PatchActorNames(ref Dictionary<string, int> ___m_signatureFr
                         if (pair.Value == 1)
                         {
                             // 9 新版随从的异画样式
-                            result.TryAdd(pair.Key, 9);
+                            result[pair.Key] = 9;
                         }
                         else
                         {
-                            result.TryAdd(pair.Key, pair.Value);
+                            result[pair.Key] = pair.Value;
                         }
                     }
                 }
diff --git a/HsMod/WebPage.cs b/HsMod/WebPage.cs
index 1cd83218..453e852a 100644
--- a/HsMod/WebPage.cs
+++ b/HsMod/WebPage.cs
@@ -27,21 +27,23 @@ private static string GenerateBtn()
         }
 
         private static string GenerateNav(string title)
+{
+    string nav = string.Empty;
+    if (title != "index")
+    {
+        nav = "<center><ul class=\"nav_ui\">";
+        // Изменено для совместимости с .NET Framework 4.8:
+        var btns = GenerateBtn().Replace("<br/>", "").Split(new string[] { "<br />" }, StringSplitOptions.None);
+        foreach (string btn in btns)
         {
-            string nav = string.Empty;
-            if (title != "index")
-            {
-                nav = "<center><ul class=\"nav_ui\">";
-                var btns = GenerateBtn().Replace("<br/>", "").Split("<br />");
-                foreach (string btn in btns)
-                {
-                    nav += $@"<li class=""nav_li"">{btn}</li>";
-                }
-                nav += "</ul></center><br />";
-            }
-
-            return nav;
+            nav += $@"<li class=""nav_li"">{btn}</li>";
         }
+        nav += "</ul></center><br />";
+    }
+
+    return nav;
+}
+
 
         public static StringBuilder Template(string title = "", string body = "", bool useViewport = true)
         {
diff --git a/HsMod/WebServer.cs b/HsMod/WebServer.cs
index e657b9ae..a94c6e9d 100644
--- a/HsMod/WebServer.cs
+++ b/HsMod/WebServer.cs
@@ -82,7 +82,7 @@ private static async Task ProcessRequestAsync(HttpListenerContext context)
                     // Read the JSON from the request body
                     using (var reader = new StreamReader(request.InputStream))
                     {
-                        string requestBody = await reader.ReadToEndAsync();
+                        string requestBody = reader.ReadToEnd();
                         Utils.MyLogger(BepInEx.Logging.LogLevel.Debug, $"POST: {requestBody}");
                         // Parse JSON and get the "command" field
                         var json = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(requestBody);
@@ -123,7 +123,7 @@ private static async Task ProcessRequestAsync(HttpListenerContext context)
                     // Read the JSON from the request body
                     using (var reader = new StreamReader(request.InputStream))
                     {
-                        string requestBody = await reader.ReadToEndAsync();
+                        string requestBody = reader.ReadToEnd();
                         Utils.MyLogger(BepInEx.Logging.LogLevel.Debug, $"POST: {requestBody}");
                         // Parse JSON and get the "key" field
                         var json = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(requestBody);
@@ -183,7 +183,7 @@ private static async Task ProcessRequestAsync(HttpListenerContext context)
                     // Read the JSON from the request body
                     using (var reader = new StreamReader(request.InputStream))
                     {
-                        string requestBody = await reader.ReadToEndAsync();
+                        string requestBody = reader.ReadToEnd();
                         Utils.MyLogger(BepInEx.Logging.LogLevel.Debug, $"POST: {requestBody}");
                         // Parse JSON and get the "key" field
                         var json = Newtonsoft.Json.JsonConvert.DeserializeObject<Dictionary<string, string>>(requestBody);
@@ -266,7 +266,7 @@ private static async Task ProcessRequestAsync(HttpListenerContext context)
                 if (VaildFilePath(preUrl))   // 优先查找本地文件
                 {
                     context.Response.ContentType = GetMimeType(Path.GetExtension(preUrl));
-                    var file = await File.ReadAllBytesAsync(preUrl);
+                    var file = File.ReadAllBytes(preUrl);
                     await context.Response.OutputStream.WriteAsync(file, 0, file.Length);
                 }
                 else if (rawUrLower == "/safeimg")