diff --git a/framework/Furion.Pure/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs b/framework/Furion.Pure/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs
index d32f467d57cb1f31e414ee40f6464e23bfc848d4..d80c1059c2dcb192bb74da3a6c89c33eb64139bc 100644
--- a/framework/Furion.Pure/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs
+++ b/framework/Furion.Pure/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs
@@ -532,7 +532,7 @@ public sealed class LoggingMonitorAttribute : Attribute, IAsyncActionFilter, IAs
             writer.WriteStartObject();
             writer.WriteString("type", exceptionTypeName);
             writer.WriteString("message", exception.Message);
-            writer.WriteString("stackTrace", exception.StackTrace.ToString());
+            writer.WriteString("stackTrace", exception.StackTrace?.ToString());
             writer.WriteEndObject();
 
             writer.WritePropertyName("validation");
diff --git a/framework/Furion/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs b/framework/Furion/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs
index d32f467d57cb1f31e414ee40f6464e23bfc848d4..d80c1059c2dcb192bb74da3a6c89c33eb64139bc 100644
--- a/framework/Furion/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs
+++ b/framework/Furion/Logging/Implantations/Monitors/LoggingMonitorAttribute.cs
@@ -532,7 +532,7 @@ public sealed class LoggingMonitorAttribute : Attribute, IAsyncActionFilter, IAs
             writer.WriteStartObject();
             writer.WriteString("type", exceptionTypeName);
             writer.WriteString("message", exception.Message);
-            writer.WriteString("stackTrace", exception.StackTrace.ToString());
+            writer.WriteString("stackTrace", exception.StackTrace?.ToString());
             writer.WriteEndObject();
 
             writer.WritePropertyName("validation");