'User not found' for group streams

Hi,

We have been using this plugin for a long time, but a few weeks ago our we started getting ‘User not found’.

I am not quite sure what is going on, but it seems to be related to the group stream url, if I try a regular photostream url it works just fine.

Any idea what could be the issue?

Thanks,

Maze

https://www.ads-software.com/plugins/quick-flickr-widget/