Problem running the code

[Kalelv45]

On the second example. Can't find a way around it. what did I miss? File "", line 187, in reward = get_reward(new_state, time_step, action, xdata, signal, terminal_state, i)

File "", line 106, in get_reward bt = twp.Backtest(pd.Series(data=[x[0] for x in xdata]), signal)

File "/anaconda3/lib/python3.6/site-packages/bt/backtest.py", line 128, in init if data.columns.duplicated().any():

File "/anaconda3/lib/python3.6/site-packages/pandas/core/generic.py", line 3610, in getattr return object.getattribute(self, name)

AttributeError: 'Series' object has no attribute 'columns'