diff --git a/apps/application/flow/step_node/application_node/i_application_node.py b/apps/application/flow/step_node/application_node/i_application_node.py
index 43f853cbf..5a4ea6e51 100644
--- a/apps/application/flow/step_node/application_node/i_application_node.py
+++ b/apps/application/flow/step_node/application_node/i_application_node.py
@@ -74,7 +74,7 @@ class IApplicationNode(INode):
                 if 'file_id' not in audio:
                     raise ValueError(
                         _("Parameter value error: The uploaded audio lacks file_id, and the audio upload fails."))
-        return self.execute(**self.node_params_serializer.data, **self.flow_params_serializer.data,
+        return self.execute(**{**self.flow_params_serializer.data, **self.node_params_serializer.data},
                             app_document_list=app_document_list, app_image_list=app_image_list,
                             app_audio_list=app_audio_list,
                             message=str(question), **kwargs)
diff --git a/apps/chat/serializers/chat.py b/apps/chat/serializers/chat.py
index 4a48e58f6..fde79abf7 100644
--- a/apps/chat/serializers/chat.py
+++ b/apps/chat/serializers/chat.py
@@ -238,7 +238,7 @@ class ChatSerializers(serializers.Serializer):
                                            'workspace_id': workspace_id,
                                            'debug': debug,
                                            'chat_user': chat_info.get_chat_user(),
-                                           'application_id': chat_info.application_id},
+                                           'application_id': str(chat_info.application_id)},
                                           WorkFlowPostHandler(chat_info),
                                           base_to_response, form_data, image_list, document_list, audio_list,
                                           other_list,