after i solved the qcluster error with a new installation i have still an error with subscribing.
It is not possible to subscribe to any list via email or web-interface.
The mass subcribtion as admin via the web-interface is possible and the unsubscribing also.
But i can not get any error messages in any log file, nothing.
Also the django users are fine, django users can subscribe without a problem.
But subscribing to any list is not possible via the web-interface, with the error message "A Server Error occured please conntact the Administrator",also subscribing via email is not possible(mail.log is fine the mail is delivered), but there is no additionally error message in any log file.
Mailman Core Version GNU Mailman 3.2.2 (La Villa Strangiato)
Mailman Core API Version 3.0
Mailman Core Python Version 3.8.5 (default, Jul 28 2020, 12:59:40) [GCC 9.3.0]