Returns error when attempting to update live plot??

[PythonAI1234]

I call the following function when there's a new tick in some other api.

def change_plot(bid):
global pd1
if pp == True:
now = datetime.utcnow()
pdnow = pd.Timestamp(now)
s = pd.Series([pdnow, bid, bid, bid, bid, 0.0], index=['Date', 'Open', 'High', 'Low', 'Close', 'tick_volume'])
print(s)
s_df = s.to_frame().T
pd1 = pd.concat([pd1, s_df], ignore_index = True)
live_plot.candlestick_ochl(pd1[['Date','Open','Close','High','Low']])
fplt.add_text([pd1.shape[0]-1, bid], '+', color='#55a', anchor=(0.5,0.5))

The error message is as follows
File "C:\Users\kesss\anaconda3\Lib\site-packages\finplot_init_.py", line 1564, in candlestick_ochl
datasrc = create_datasrc(ax, datasrc, ncols=5)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\finplot_init.py", line 2329, in create_datasrc
datasrc = do_create(iargs)
^^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\finplot_init.py", line 2325, in do_create
return PandasDataSource(args[0])
^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\finplot_init_.py", line 264, in init
self.df[timecol] = pdtime2epoch(df[timecol])
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\finplot_init.py", line 2774, in _pdtime2epoch
return t.view('int64')
^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\pandas\core\series.py", line 895, in view
res_values = self.array.view(dtype)
^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\pandas\core\arrays_mixins.py", line 147, in view
return arr.view(dtype=dtype) # type: ignore[arg-type]
^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\kesss\anaconda3\Lib\site-packages\numpy\core_internal.py", line 551, in _view_is_safe
raise TypeError("Cannot change data-type for object array.")
TypeError: Cannot change data-type for object array.

[PythonAI1234]

It works but I had to use pd1['Date'] = pd.to_datetime(pd1['Date']).astype('int64') and make the new candles time in this format too.