BEGIN:VCALENDAR VERSION:2.0 PRODID:https://www.lfk.de/ BEGIN:VEVENT UID:687393b7f0df8 DTSTART:20250713T110839Z SEQUENCE:0 TRANSP:OPAQUE LOCATION:---\,--- --- SUMMARY:can_not_generate_ICS CLASS:PUBLIC DESCRIPTION:--- DTSTAMP:20250713T110839Z END:VEVENT END:VCALENDAR