Upgrade 0.27 issues

Good Afternoon

Not really sure if this is an issue but thought I would post it just in case. Noticed during the upgrade from0.26c to 0.27 this appeared on the display

updated DNS: OpenDKIM configuration
/usr/local/lib/mailinabox/env/lib/python3.4/site-packages/acme/jose/jwa.py:110: CryptographyDeprecationWarning: signer and verifier have been deprecated. Please use sign and verify instead.
signer = key.signer(self.padding, self.hash)
Traceback (most recent call last):
File “management/ssl_certificates.py”, line 803, in
File “management/ssl_certificates.py”, line 446, in provision_certificates_cmd line
status = provision_certificates(env, agree_to_tos_url=agree_to_tos_url, logg er=my_logger, force_domains=force_domains, show_extended_problems=show_extended_ problems)
File “management/ssl_certificates.py”, line 331, in provision_certificates
File “/usr/local/lib/mailinabox/env/lib/python3.4/site-packages/free_tls_certi ficates/client.py”, line 64, in issue_certificate
agree_to_tos_url, validation_method, acme_server, logger)
File “/usr/local/lib/mailinabox/env/lib/python3.4/site-packages/free_tls_certi ficates/client.py”, line 121, in validate_domain_ownership
challg = submit_domain_validation(client, regr, account, challenges_file, do main, validation_method, logger)
File “/usr/local/lib/mailinabox/env/lib/python3.4/site-packages/free_tls_certi ficates/client.py”, line 433, in submit_domain_validation
message = '; '.join(c.error.detail for c in challg.challenges if c.status.na me == “invalid”)
File “/usr/local/lib/mailinabox/env/lib/python3.4/site-packages/free_tls_certi ficates/client.py”, line 433, in
message = '; '.join(c.error.detail for c in challg.challenges if c.status.na me == “invalid”)
AttributeError: ‘NoneType’ object has no attribute ‘detail’

Just thought it might be a problem however I have notice no impact to the server at this point.

All the Best