Hola, tengo instalado el módulo l10n_cl_fe en Odoo 14 con Ubuntu 20. Estoy tratando de validar un certificado digital .pfx y me aparece el siguiente error:

...
  File "/opt/odoo-addons/community/l10n_cl_fe/models/sii_firma.py", line 128, in action_process
    "emision_date": datetime.strptime(cert.get_notBefore().decode("utf-8"), "%Y%m%d%H%M%SZ"),
  File "/usr/lib/python3/dist-packages/OpenSSL/crypto.py", line 1378, in get_notBefore
    return self._get_boundary_time(_lib.X509_get_notBefore)
Exception

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/opt/odoo/odoo/http.py", line 640, in _handle_exception
    return super(JsonRequest, self)._handle_exception(exception)
  File "/opt/odoo/odoo/http.py", line 316, in _handle_exception
    raise exception.with_traceback(None) from new_cause
AttributeError: module 'lib' has no attribute 'X509_get_notBefore'

# python3 -m OpenSSL.debug

pyOpenSSL: 19.0.0
cryptography: 36.0.1
cffi: 1.15.0
cryptography's compiled against OpenSSL: OpenSSL 1.1.1m  14 Dec 2021
cryptography's linked OpenSSL: OpenSSL 1.1.1m  14 Dec 2021
Pythons's OpenSSL: OpenSSL 1.1.1f  31 Mar 2020
Python executable: /usr/bin/python3
Python version: 3.8.10 (default, Nov 26 2021, 20:14:08)
[GCC 9.3.0]
Platform: linux