BEGIN:VCALENDAR VERSION:2.0 PRODID:https://www.lfk.de/ BEGIN:VEVENT UID:6865f8670ae54 DTSTART:20250703T032631Z SEQUENCE:0 TRANSP:OPAQUE LOCATION:---\,--- --- SUMMARY:can_not_generate_ICS CLASS:PUBLIC DESCRIPTION:--- DTSTAMP:20250703T032631Z END:VEVENT END:VCALENDAR