Introducing the “Chat with your data” solution accelerator – now available on GitHub

It outputs fine for inputs such as greetings, but other words, e.g.,

"The network is not connected." the trace does not show an error, but the bot outputs

"() Invalid expression: Could not find a property named 'content' on type 'search.document'. Parameter name: $select Code: Message: Invalid expression: Could not find a property named 'content' on type 'search.document'. Returns "Parameter name: $select

langchainagent is working properly.
I was wondering where to fix the file since there is no internal error.