I am trying to implement the search functionality using the elasticsearch concept.

I am getting the following error:

BadRequestError(400, 'search_phase_execution_exception', 'runtime error')

I am not sure where I am doing the mistake.

My source code is located here:

https://medium.com/@sanjay.feb9/semantic-search-with-elasticsearch-db00bc7ff989

I am using Windows 10 environment.