day is out of range for month after run example

[VLADYRON]

Traceback (most recent call last):
File "pandas/_libs/tslibs/parsing.pyx", line 308, in pandas._libs.tslibs.parsing.parse_datetime_string_with_reso
File "pandas/_libs/tslibs/parsing.pyx", line 508, in pandas._libs.tslibs.parsing.dateutil_parse
ValueError: day is out of range for month

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "tipocambio.py", line 5, in
data = nk.get_exchange_rate('USD', '01/01/2019', '10/01/2019')
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/nazk/nazk.py", line 94, in get_exchange_rate
data_frame = self._data_frame(currency_code, date, to_date or date)
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/nazk/nazk.py", line 56, in _data_frame
df = df.replace(0, np.nan).ffill()
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/frame.py", line 4258, in replace
method=method,
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/generic.py", line 6779, in replace
to_replace=to_replace, value=value, inplace=inplace, regex=regex
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/internals/managers.py", line 588, in replace
return self.apply("replace", value=value, **kwargs)
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/internals/managers.py", line 438, in apply
applied = getattr(b, f)(**kwargs)
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/internals/blocks.py", line 806, in replace
mask = missing.mask_missing(values, to_replace)
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/missing.py", line 48, in mask_missing
mask = arr == x
File "/Users/blady/dxtr/vyton/sbs/lib/python3.7/site-packages/pandas/core/arrays/period.py", line 100, in wrapper
other = Period(other, freq=self.freq)
File "pandas/_libs/tslibs/period.pyx", line 2457, in pandas._libs.tslibs.period.Period.new
File "pandas/_libs/tslibs/parsing.pyx", line 268, in pandas._libs.tslibs.parsing.parse_time_string
File "pandas/_libs/tslibs/parsing.pyx", line 313, in pandas._libs.tslibs.parsing.parse_datetime_string_with_reso
pandas._libs.tslibs.parsing.DateParseError: day is out of range for month