Getting error_code': 'DH-902' everytime i make request for ohcl data

I have a demat account with Dhan, but I am still unable to use DhanHQ

dhan_obj = dhanhq(client_id,access_token)
data = dhan_obj.historical_daily_data(
security_id=‘694’,
exchange_segment=‘NSE_EQ’,
instrument_type=‘EQUITY’,
from_date=‘2022-01-08’,
to_date=‘2022-02-08’
)

print(data)