Hi guys, After this new version arrived I got this error can anyone look into it.

# Rolling Window Fractal Indicator (Binance)



CRYPTO = "USDCUSDT";  BAR = 60;



class BlackpantherFractal(QCAlgorithm):



    def Initialize(self):

        self.SetStartDate(2022, 5, 1)

        self.SetEndDate(2022, 5, 3) 

        self.SetCash("USDT", 1000) 

        self.crypto = self.AddCrypto(CRYPTO, Resolution.Minute, Market.Binance).Symbol

        self.SetSecurityInitializer(lambda s: s.SetLeverage(1))

        self.SetBrokerageModel(BrokerageName.Binance, AccountType.Margin)

        self.Consolidate(self.crypto, timedelta(minutes = BAR), self.CustomBarHandler)

        self.window = RollingWindow[TradeBar](3)

        self.consolidator = TradeBarConsolidator(timedelta(minutes=BAR))        

        self.SubscriptionManager.AddConsolidator(self.crypto, self.consolidator)

        self.SetWarmUp(BAR, Resolution.Minute)

        



    def CustomBarHandler(self, bar):

        if self.IsWarmingUp: return

        self.window.Add(bar) 

        if not self.window.IsReady: return

    

        H = [self.window[i].High for i in range(3)]

        L = [self.window[i].Low for i in range(3)]

        C = [self.window[i].Close for i in range(3)]

        curr_price = self.Securities[self.crypto].Price

        

        if not self.Portfolio[self.crypto].IsLong:

            if ( curr_price <= L[1] <= L[2]):

                self.SetHoldings(self.crypto,1)

                

        elif not self.Portfolio[self.crypto].IsShort:        

            if ( curr_price >= H[1] >=  H[2]):

                self.SetHoldings(self.crypto,-1)

 

problem :- During the algorithm initialization, the following exception has occurred: Loader.TryCreatePythonAlgorithm(): Unable to import python module ./cache/algorithm/project/main.pyc. AlgorithmPythonWrapper(): name 'QCAlgorithm' is not defined
 at
   class BlackpantherFractal(QCAlgorithm):
  at Python.Runtime.PythonException.ThrowLastAsClrException()
  at Python.Runtime.NewReferenceExtensions.BorrowOrThrow(NewReference& reference)
  at Python.Runtime.PyModule.Import(String name)
  at Python.Runtime.Py.Import(String name)
  at QuantConnect.AlgorithmFactory.Python.Wrappers.AlgorithmPythonWrapper..ctor(String moduleName) at AlgorithmFactory/Python/Wrappers/AlgorithmPythonWrapper.cs:line 74 in main.py: line 4
name 'QCAlgorithm' is not defined