Pan not working

I have used Pan for years on my Ubuntu and Kubuntu laptops,
but from a few months ago it stopped working - no newsgroups.
If I subscribe to one, it seems to enter it in the list of groups but
when I click on it, nothing happens, see the screenshot.

I use eternal-september.org as the news server and am a
subscriber - it all worked fine before until it died.

What can be going on here? How do I get back on?

Dieter

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