I’m getting the same
(base) [root@ip-172-31-23-114 configs]# ./certbot-auto --standalone --config /etc/letsencrypt/configs/iot.smarttrak.info…conf certonly
/opt/eff.org/certbot/venv/local/lib/python2.7/dist-packages/OpenSSL/crypto.py:12: CryptographyDeprecationWarning: Python 2 is no longer supported by the Python core team. Support for it is now deprecated in cryptography, and will be removed in a future release.
from cryptography import x509
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator standalone, Installer None
An unexpected error occurred:
The client lacks sufficient authorization :: Account creation on ACMEv1 is disabled. Please upgrade your ACME client to a version that supports ACMEv2 / RFC 8555. See End of Life Plan for ACMEv1 for details.
Please see the logfiles in /var/log/letsencrypt for more details.