That could be part of it. Node-RED v 0.19.5 was released in October of 2018 over three years ago. The current release is v2.1.3 so as you can see you are behind by quite a lot.
In addition node-red-contrib-chatbot is currently at version 0.19.11
That said, you should put a
debug node (set to display the complete msg object) on the output of the node feeding the Oracle node and another
debug node on the output of the Oracal node to see what changes are hapening to the msg. It is possibel that the oracle node is removing some of the information that you need to send to the chatbot. If so, you night want to mov that data to another part of the msg and then after the oracle node, you can put it back where it needs to be.