Could you please create a new website user for us? If possible with administrator capabilities so we can make a quick check of your settings.
You can post the user name and password in your next reply and mark it as private to keep this between us.
The developers of the “The Events Calendar” plugins have made major changes for the event editor.
Gwangi is not compatible with this new way of editing. So we just unchecked the box “Activate Block Editor for Events” (Aktiviere den Block Editor für Veranstaltungen in German) in the Events settings screen which deactivate the new editor and bring back the old one.
You're trying to setup your theme but you're experiencing errors when importing the demo content? Or you've just followed the setup guide but your website doesn't look exactly like our demo? These are common issues for which you can find easy and quick fixes.