[Mailman-Users] Web interfece doen't work correctly

[Peter]

Hi there,


Mailman is working well here.
Received, send and archive emails as ik has to be.
Via web interface (Apache2.4) I can add/remove users

But the only that not can be done is authorization/reject emails that 
are not belong to a list member.
I do received the authorization email, click on the link and I got the 
correct page.
Select what to do and click submit all data.
Then nothing happens :-(

I'am using  version 2.1.23 on a Debian9 system

Peter