UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe5 in position 5579: invalid continuation byte

[21h]

installed, no problem with that.

started inside python:3 container with mounted repository:

root@2c23ce5b9518:/apt-mirror-check# apt-mirror-check 
checking /mirror/mirror/old-releases.ubuntu.com/ubuntu/dists/dapper-backports ...
checking /mirror/mirror/old-releases.ubuntu.com/ubuntu/dists/dapper-proposed ...
checking /mirror/mirror/old-releases.ubuntu.com/ubuntu/dists/dapper-security ...
checking /mirror/mirror/old-releases.ubuntu.com/ubuntu/dists/dapper-updates ...
checking /mirror/mirror/old-releases.ubuntu.com/ubuntu/dists/dapper ...
Traceback (most recent call last):
  File "/usr/local/bin/apt-mirror-check", line 33, in <module>
    sys.exit(load_entry_point('apt-mirror-check==1.0.2', 'console_scripts', 'apt-mirror-check')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/click-8.1.7-py3.11.egg/click/core.py", line 1157, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/click-8.1.7-py3.11.egg/click/core.py", line 1078, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/click-8.1.7-py3.11.egg/click/core.py", line 1434, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/click-8.1.7-py3.11.egg/click/core.py", line 783, in invoke
    return __callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/apt_mirror_check-1.0.2-py3.11.egg/apt_mirror_check.py", line 202, in cli
  File "/usr/local/lib/python3.11/site-packages/apt_mirror_check-1.0.2-py3.11.egg/apt_mirror_check.py", line 155, in bad_files_in_mirror
  File "/usr/local/lib/python3.11/site-packages/apt_mirror_check-1.0.2-py3.11.egg/apt_mirror_check.py", line 90, in pool_attrs
  File "/usr/local/lib/python3.11/site-packages/apt_mirror_check-1.0.2-py3.11.egg/apt_mirror_check.py", line 63, in pkg_attrs
  File "<frozen codecs>", line 322, in decode
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xe5 in position 5579: invalid continuation byte

i think something goes wrong