Issue with Websocket Connection

haven't changed the code since months please help last week everything was smooth today only this issue i am facing @rakeshr

from kiteconnect import KiteConnect, KiteTicker

# Initialize KiteConnect object with API key
api_key = "token"
access_token = "accesstoken"
kite = KiteConnect(api_key=api_key)

# Set the access token
kite.set_access_token(access_token)

# Define the instrument token (example: Nifty 50)
instrument_token = "256265" # Replace with the actual instrument token you want to subscribe to

# Callback to handle the real-time data
def on_ticks(ws, ticks):
""" On receiving live market data """
print("Ticks: {}".format(ticks))

# Callback to handle connection status
def on_connect(ws, response):
""" On successful connection """
print("Connected successfully")
ws.subscribe([instrument_token]) # Subscribe to instrument token
print("done")

# Callback to handle disconnection
def on_close(ws, code, reason):
""" On websocket close """
print("Connection closed: Code={}, Reason={}".format(code, reason))

# Create KiteTicker object
kite_ticker = KiteTicker(api_key, access_token)

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

# Infinite loop to keep the script running
print("Starting the WebSocket...")
kite_ticker.connect(threaded=True)


this code is also not running getting the following error
Connection error: 0 - error parsing request