Probably last one is because of misconfiguration of api_key: SecretArchiverAPIKey ?

If the first URL does not match, it means that HyperKitty is not activated in the virtualhost for 127.0.0.1. You should get a message in HyperKitty's logs stating that the connection was refused because the IP address is not allowed. You have two options:

• activate HyperKitty for 127.0.0.1
• in HyperKitty's settings file (production.py), edit the MAILMAN_ARCHIVER_FROM variable to allow you local IP. This IP address must not change.

Aurélien