ReactorNotRestartable

Getting my api_key and access_token correct but returning error 'ReactorNotRestartable' during live data. Following is the code:

# Initialise
kws = KiteTicker(data['api_key'], data['access_token'])

def on_ticks(ws, ticks):
# Callback to receive ticks.
logging.debug("Ticks: {}".format(ticks))

def on_connect(ws, response):
# Callback on successful connect.
# Subscribe to a list of instrument_tokens (RELIANCE and ACC here).
ws.subscribe([738561, 5633])

# Set RELIANCE to tick in `full` mode.
ws.set_mode(ws.MODE_FULL, [738561])

def on_close(ws, code, reason):
# On connection close stop the event loop.
# Reconnection will not happen after executing `ws.stop()`
ws.stop()

# Assign the callbacks.
kws.on_ticks = on_ticks
kws.on_connect = on_connect
kws.on_close = on_close

# Infinite loop on the main thread. Nothing after this will run.
# You have to use the pre-defined callbacks to manage subscriptions.
kws.connect()