Getting error repeatedly while downloading Historical Data

Hi Team,

  First of I would like to thank for your Efforts. Historical data accuracy is 100%. & Very fast in downloading.

  But sometime repeatedly I am getting below error while downloading.

"An error occurred while fetching historical data: HTTPSConnectionPool(host='charting.nseindia.com', port=443): Read timed out. (read timeout=10)"

Please help me how can I fix it.