Nothing happens when running cerebro

[Arta Asadi]

Hi, I have written my code just like strategy example but it won't run anything. Please help me.
Strategy code:

class TestStrategy2(bt.Strategy):

    def log(self, txt, dt=None):
        ''' Logging function for this strategy'''
        dt = dt or self.datas[0].datetime.date(0)
        print('%s, %s' % (dt.isoformat(), txt))

    def __init__(self):
        # Keep a reference to the "close" line in the data[0] dataseries
        self.dataclose = self.datas[0].close

    def next(self):
        # Simply log the closing price of the series from the reference
        self.log('Close, %.2f' % self.dataclose[0])

Datafeed:

class PandasData(bt.feed.DataBase):
    #linesoverride = True  # discard usual OHLC structure
    # datetime must be present and last
    #lines = ('Signal',)
    params = (
        #('dtformat', '%Y-%m-%d'),
        #('datetime', -1),
        #('time', None),
        ('open', 1),
        ('high', 2),
        ('low', 3),
        ('close', 4),
        ('volume', 5),
        #('Signal', 6),
        ('timeframe', bt.TimeFrame.Days),
        ('compression', 1),
        ('openinterest', None)
    )
    # datafields = bt.feeds.PandasData.datafields + ([
    #     ('Signal')]
    # )

Running:

ready_data = PandasData(dataname=strategy_data2)
cerebro = bt.Cerebro()
cerebro.adddata(ready_data)
cerebro.addstrategy(TestStrategy2)
cerebro.broker.setcash(1000000000.0)
cerebro.run()

in the jupyter it gives this:

[<__main__.TestStrategy at 0x150489c3ba8>]

but running in normal file gives nothing. At least I want it to log the close, so, I can make that cerebro is working on my data.
Please help me. Thanks

[ab_trader]

Your data feed has not datetime parameter.