NetworkException while fetching LTP

deepakevil2

In my code, I am calling /quote/ltp (REST API) every 5 seconds. It has been working fine for the last 3 months but last two days I have been getting the following error frequently (approximately 10 times a day)

Error:
{'status': 'error', 'message': 'Request failed (kt-quotes).', 'data': None, 'error_type': 'NetworkException'}