Hello all,

I'm getting the following in the logs in our MM server: Nov 01 14:00:17 2021 (26843) HyperKitty failure on http://localhost/mailman3/hyperkitty/api/mailman/archive: <h1>Server Error (500)</h1> (500) Nov 01 14:00:17 2021 (26843) Exception in the HyperKitty archiver: <h1>Server Error (500)</h1> Nov 01 14:00:17 2021 (26843) Traceback (most recent call last): File "/usr/lib/python3/dist-packages/mailman_hyperkitty/__init__.py", line 154, in _archive_message url = self._send_message(mlist, msg) File "/usr/lib/python3/dist-packages/mailman_hyperkitty/__init__.py", line 210, in _send_message raise ValueError(result.text) ValueError: <h1>Server Error (500)</h1>

which is mirrored in the mailman-web.log with this

21:57:07 [Q] INFO Enqueued 1962530 21:57:08 [Q] INFO Process-1:36 processing [sender_mailman_id] 21:57:08 [Q] INFO Processed [sender_mailman_id] ERROR 2021-11-01 21:57:07,969 17847 django.request Internal Server Error: /mailman3/hyperkitty/api/mailman/archive Traceback (most recent call last):

plus a bunch of python errors and this:

ValueError: A string literal cannot contain NUL (0x00) characters. ERROR 2021-11-01 21:57:07,969 17847 django.request Internal Server Error: /mailman3/hyperkitty/api/mailman/archive Traceback (most recent call last):

We are on v3.1 on Ubuntu 18.04. I do have a project beginning to move to Ubuntu 20.04 eventually. For now, I'm struggling to find the resolution to this error. I've looked at the site here, did a rebuild on the whoosh index, I've found and tested the suggestions to add a localhost non-https in apache for HyperKitty, I've edited HyperKitty to be https rather than HTTP, none of these settings / changes seem to resolve the issue.

Oddly for all intents and purposes, the server appears to run fine, the archive might be a bit slow but it doesn't seem to have issues other than the constant errors coming into the admin emails.

Happy to post any configs or detail anything, appreciate any replies.

Respectfully,