issue with pip install command

[klaveczky]

PS C:\WINDOWS\system32> pip install mixingbear
Collecting mixingbear
Using cached mixingbear-0.0.1.tar.gz (4.1 kB)
Preparing metadata (setup.py) ... error
error: subprocess-exited-with-error

× python setup.py egg_info did not run successfully.
│ exit code: 1
╰─> [10 lines of output]
Traceback (most recent call last):
File "", line 2, in
File "", line 34, in
File "C:\Users\Kosztya\AppData\Local\Temp\pip-install-x_254zzr\mixingbear_7507044a6c8a4e1fb3d398c96d930199\setup.py", line 4, in
long_description = f.read()
^^^^^^^^
File "C:\Users\Kosztya\AppData\Local\Programs\Python\Python311\Lib\encodings\cp1252.py", line 23, in decode
return codecs.charmap_decode(input,self.errors,decoding_table)[0]
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
UnicodeDecodeError: 'charmap' codec can't decode byte 0x8f in position 867: character maps to
[end of output]

note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
PS C:\WINDOWS\system32>

Thank you for all help in advance.