Getting error while subscribing an index

API
1

I tried to subscribe Midcap nifty and I am getting the error.
The value being picked to aliceblue.py subscribe method is ‘NSE|26074’

AliceBlue Ticker Subscribing instruments [Instrument(exchange=‘NSE’, token=26074, symbol=‘NIFTY MIDCAP SELECT’, name=‘’, expiry=‘’, lot_size=‘’)]


bluepy.Aliceblue object at 0x7fa4b29ad720>>: list index out of range
2024-05-27 11:15:52: Thread-9 (__ws_run_forever): Error : list index out of range
2024-05-27 11:15:52: Thread-9 (__ws_run_forever): error from callback <bound method Aliceblue.on_message of <pya3.alicebluepy.Aliceblue object at 0x7fa4b29ad720>>: list index out of range
2024-05-27 11:15:52: Thread-9 (__ws_run_forever): Error : list index out of range

For F&O its working, but while subscribing to an index, it is giving this error. Guide me on how to subscribe indices.

‘{“t”:“tf”,“e”:“NSE”,“tk”:“26037”,“lp”:“22007.60”,“pc”:“0.19”,“ft”:“1716872846”}’. Even when I enabled market depth, I dont see OI data
how can I get open interest of a ticket.