Lightbox does not open all feed sources

Hi,
All feed sources worked fine in the lightbox and everything worked until now.

Suddenly 6 of the 12 feeds are no longer loaded into the lightbox!
My news page with 12 feeds in the left sidebar: https://wakkermens.info/alternatief-nieuws/

Thanks for help.
Rovanov

The page I need help with: [log in to see the link]