Update app/callbacks.py

app/callbacks.py

@@ -14,7 +14,8 @@ class LogResponseCallback(BaseCallbackHandler):
 
     def on_llm_end(self, outputs: Dict[str, Any], **kwargs: Any) -> Any:
         """Run when chain ends running."""
-        message = schemas.MessageBase(message=outputs.generations[0][0].text, type='AI')
+        llm_response = outputs.generations[0][0].text
+        message = schemas.MessageBase(message=llm_response, type='AI')
         crud.add_message(self.db, message, self.user_request.username)
 
     def on_llm_start(