Recently a member of one of our private lists sent a message with a
picture attached. Because of the large message size (23MB) it was put
into the moderation queue.
But since then postorius fails to open the list's page with this error:
Something went wrong
Mailman REST API not available. Please start Mailman core.
The database logs show that it processed a request related to the held
message just before failing:
LOG: statement: SELECT message.id AS message_id_1, message.message_id
AS message_message_id, message.message_id_hash AS
message_message_id_hash, message.path AS message_path
WHERE message.message_id =
Mailman Core logs:
[2020-07-14 10:41:21 +0000]  [CRITICAL] WORKER TIMEOUT (pid:49)
[2020-07-14 10:41:21 +0000]  [INFO] Worker exiting (pid: 49)
[2020-07-14 10:41:22 +0000]  [INFO] Booting worker with pid: 50
How should I proceed to unblock the situation?