[Modify] Replace it

websocket-sharp/WebSocket.cs

@@ -1852,7 +1852,8 @@ namespace WebSocketSharp
         }
       }
       catch (Exception ex) {
-        processException (ex, "An exception has occurred while accepting.");
+        _logger.Fatal (ex.ToString ());
+        fatal ("An exception has occurred while accepting.", ex);
       }
     }