I'm invoking historical api using Continuous=True to retrieve 200 60min candles for a futures contract. In response, I get the below error -

kiteconnect.exceptions.DataException: Unknown Content-Type (text/html) with response: (b"

504 Gateway Time-out

\nThe server didn't respond in time.\n\n")

The moment I remove the Continuous flag, the api returns data. What is the issue here?