Hi,
In Calendar properties it's possible to use the icalendar URL so another device can have a read only view of that calendar. This works in GO4 and I've used it for ages but in GO5, installed via Softaculous on shared hosting, it doesn't work. I've got google calendar to try and open it by going 'new calendar by URL' as well as an Android app but both report invalid URL. The syntax of the URL in GO5 is very different to that of GO4 - using your demo as an example it's now http://demo.group-office.eu/public/cale ... lendar.ics.
As of a matter of interest the folder called 'public' in this example doesn't exist in my instalation. Can someone shed some lights please? Thanks!