How to get rid of the error `package has no attribute '_w_long'`?

Question

Suddenly, I don't know why occurs the error for every python file in this project, let's take for example and use matplotlib.

I tried this:

import matplotlib.pyplot as plt

plt.plot([1,2,3],[1,2,3])
plt.show()

And the error is:

Remainder of file ignored
Traceback (most recent call last):
  File "C:\Users\Idensas\PycharmProjects\protest\try.py", line 1, in <module>
    import matplotlib.pyplot as plt
  File "C:\Users\Idensas\AppData\Local\Programs\Python\Python39\lib\site-packages\matplotlib\__init__.py", line 89, in <module>
    import importlib
  File "C:\Users\Idensas\PycharmProjects\OneMoreTime\pypy\lib-python\3\importlib\__init__.py", line 51, in <module>
    _w_long = _bootstrap_external._w_long
AttributeError: module 'importlib._bootstrap_external' has no attribute '_w_long'

There are more errors but I omit that, because they all same like this above, errors with:

• protobuf-3.18.0-py3.9-nspkg.pth
• matplotlib-3.5.1-py3.9-nspkg.pth
• googleapis_common_protos-1.53.0-py3.9-nspkg.pth
• distutils-precedence.pth

I took a look at some same questions like mine, but nothing helped me. I have installed only one version of python, this was years ago. I just turn on my PC, go to PyCharm and an error today is occurs. Uhh...