diff --git a/SimApiExtensions.cs b/SimApiExtensions.cs
index ee1ac44..a2aad95 100644
--- a/SimApiExtensions.cs
+++ b/SimApiExtensions.cs
@@ -224,11 +224,11 @@ public static class SimApiExtensions
     /// </summary>
     /// <param name="builder"></param>
     /// <returns></returns>
-    public static IApplicationBuilder UseSimApi(this IApplicationBuilder builder)
+    public static WebApplication UseSimApi(this WebApplication builder)
     {
-        var options = builder.ApplicationServices.GetRequiredService<SimApiOptions>();
+        var options = builder.Services.GetRequiredService<SimApiOptions>();
 
-        var logger = builder.ApplicationServices.GetRequiredService<ILogger<SimApiOptions>>();
+        var logger = builder.Services.GetRequiredService<ILogger<SimApiOptions>>();
 
         logger.LogInformation("当前时区: {LocalId}", TimeZoneInfo.Local.Id);
         if (options.EnableForwardHeaders)
@@ -277,7 +277,7 @@ public static class SimApiExtensions
         if (options.EnableSimApiStorage)
         {
             logger.LogInformation("开始配置SimApiStorage...");
-            builder.ApplicationServices.GetService<SimApiStorage>();
+            builder.Services.GetService<SimApiStorage>();
         }
 
         if (options.EnableLowerUrl)
@@ -287,7 +287,7 @@ public static class SimApiExtensions
 
         if (options.EnableSynapse)
         {
-            var synapse = builder.ApplicationServices.GetRequiredService<Synapse>();
+            var synapse = builder.Services.GetRequiredService<Synapse>();
             synapse.Init();
         }
 
diff --git a/Synapse/EventServer.cs b/Synapse/EventServer.cs
index 2add285..57c7aee 100644
--- a/Synapse/EventServer.cs
+++ b/Synapse/EventServer.cs
@@ -33,7 +33,7 @@ public partial class Synapse
                 {
                     if (mt!.GetParameters().Length == 2)
                     {
-                        var pt = mt!.GetParameters()[0].ParameterType;
+                        var pt = mt.GetParameters()[1].ParameterType;
                         mt.Invoke(callClass, pt == typeof(string)
                             ? [eventName, reqBody]
                             : [eventName, JsonSerializer.Deserialize(reqBody, pt, SimApiUtil.JsonOption)]);
@@ -45,7 +45,7 @@ public partial class Synapse
                 }
                 catch (Exception ex)
                 {
-                    logger.LogError("Synapse Event Processor Error: {Err}", ex.InnerException);
+                    logger.LogError("Synapse Event Processor Error: {Err}\n{Stack}", ex.Message,ex.StackTrace);
                 }
             }