Able to fetch data for futures and options but Not stocks in Python via websocket

I'm able to fetch data for Options and futures, but not stocks. can you please help me understand what is wrong?

I've pasted the inputs and outputs. error is in the line td_obj.get_historic_data(symbol, duration, bar_size).

Thanks

symbol

Out[90]: 'RELIANCE'

duration

Out[91]: '3 D'

bar_size

Out[92]: '5 mins'

td_obj.get_historic_data(symbol, duration, bar_size)

Traceback (most recent call last):

File "<ipython-input-93-f6a20db1a911>", line 1, in <module>

td_obj.get_historic_data(symbol, duration, bar_size)

File "C:\ProgramData\Anaconda3\lib\site-packages\truedata_ws\websocket\TD.py", line 463, in get_historic_data

return self.get_historical_data_from_duration(contract=contract,

File "C:\ProgramData\Anaconda3\lib\site-packages\truedata_ws\websocket\TD.py", line 496, in get_historical_data_from_duration

assert type(end_time) == datetime

AssertionError