In my case the error is now: "item.startDate is null". If someone is following here with the same problems with nextcloud, here I opened a new bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=1721085
In my case the error is now: "item.startDate is null".
If someone is following here with the same problems with nextcloud, here I opened a new bug:
https:/ /bugzilla. mozilla. org/show_ bug.cgi? id=1721085