AttributeError: 'NoneType' object has no attribute 'now'

Exception ignored in: <function ProgressBarMixinBase.__del__ at 0x000001C94874A7A0>
Traceback (most recent call last):
  File "D:\Python311\Lib\site-packages\progressbar\bar.py", line 130, in __del__
  File "D:\Python311\Lib\site-packages\progressbar\bar.py", line 1035, in finish
AttributeError: 'NoneType' object has no attribute 'now'