OMS error

I am receiving this error frequently:

  File "C:\kite\KiteTrade\margins.py", line 179, in calculate_boco
    quote=self.portfolio.bars.kite.quote(exchange,tradingsymbol)

  File "C:\Anaconda3\lib\site-packages\kiteconnect\__init__.py", line 528, in quote
    "open": d[1],

  File "C:\Anaconda3\lib\site-packages\kiteconnect\__init__.py", line 602, in _get
    if self.access_token:

  File "C:\Anaconda3\lib\site-packages\kiteconnect\__init__.py", line 693, in _request
    def on_tick(tick, ws):

NetworkException: Invalid HTTP status from OMS (404)