langchain csvLoader error openai.error.InvalidRequestError: '$.input' is invalid

Question

I am using a simple langchain CSVLoader to load a sample data that I downloaded from here

My simple code is here: https://pastebin.com/RNT1bpTM When I start my script, I get the error:

openai.error.InvalidRequestError: '$.input' is invalid. Please check the API reference: https://platform.openai.com/docs/api-reference.

I also tried loading csv with specifying arguments but it's not any better. Do you know what am I missing? Csv format seems valid.

Thanks