No archive summary (was: Not archiving on Debain 11)

I've setup Mailman3 on Debian GNU/Linux 11 (bullseye) with these packages: mailman3-full lynx I've configured files by following guides:

/etc/mailman3/mailman.cfg
/etc/exim4/conf.d/main/25_mm3_macros
/etc/exim4/conf.d/router/455_mm3_router
/etc/exim4/conf.d/transport/55_mm3_transport
/etc/mailman3/mailman-hyperkitty.cfg
/etc/mailman3/mailman-web.py

Web service is Apache2 and MTA is EXIM4

Postorius works to create mailing lists and configure them to enable archiving to Hyperkitty, mailing works (subscribers receive letters as expected), but archives remain empty as if no letter was distributed through Mailman:

The following statistics are from the past 30 days: 0 participants 0 discussions

I see this at /var/log/mailman3/web/mailman-web.log :

WARNING 2022-02-03 15:28:55,804 191133 django.request Unauthorized: /mailman3/hyperkitty/api/mailman/urls

Of course, there is no /mailman3 directory tree.