Hi,
Annoyingly it did not help. I tried this version, but the eventsmanager still seems to not move forward from the day of my last login into the backend.
I last logged in yesterday and deactivated the WP FullCalendar-plugin with the hope of the Events Manager working. But as I checked in the Frontend today, it still shows the events from yesterday and on the little calendar-widget from the Events Manager (on site: https://www.laufgruppe-dresden.de/kalender-termine/) it shows March 12th as today.
I have absolutely no idea where this wrong date comes from.. I hope anybody can help me!!!