Failing when trying to use the docker container

[fiianalytics]

I followed the instructions using docker build and docker run. Got the error below. Please help

root@mine:~# docker run --rm --name lets-encrypt -it -v /root/letsencrypt/:/etc/letsencrypt -v /root/letsencrypt-logs/:/var/log/letsencrypt  --env-file /home/veera/env.list certbot-s3front echo $AWS_ACCESS_KEY_ID
/usr/local/lib/python3.6/site-packages/OpenSSL/_util.py:6: CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team. Therefore, support for it is deprecated in cryptography. The next release of cryptography will remove support for Python 3.6.
  from cryptography.hazmat.bindings.openssl.binding import Binding
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Python 3.6 support will be dropped in the next release of Certbot - please upgrade your Python version.
Plugin legacy name certbot-s3front:installer may be removed in a future version. Please use installer instead.
Zope interface certbot.interfaces.IInstaller is deprecated, use ABC certbot.interface.Installer instead.
Plugin legacy name certbot-s3front:auth may be removed in a future version. Please use auth instead.
Zope interface certbot.interfaces.IAuthenticator is deprecated, use ABC certbot.interface.Authenticator instead.
Requesting a certificate for testcert.fiianalytics.in
An unexpected error occurred:
ValueError: Invalid version. The only valid version for X509Req is 0.