ICS events are not shown (but works on demo site)

Hi,

I have difficulties getting the ICS Calendar plugin to work. See example page https://www.pop2023.be/konzertmeister-calendar/.

There are events in the ics file, but they don’t get loaded into this page.

Using the demo site from ICS Calendar it works
https://icscalendar.com/preview#calendar-preview

Any ideas?

Thanks,
Thomas

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