BEGIN:VCALENDAR VERSION:2.0 PRODID:https://www.lfk.de/ BEGIN:VEVENT UID:68739b57848b3 DTSTART:20250713T114111Z SEQUENCE:0 TRANSP:OPAQUE LOCATION:---\,--- --- SUMMARY:can_not_generate_ICS CLASS:PUBLIC DESCRIPTION:--- DTSTAMP:20250713T114111Z END:VEVENT END:VCALENDAR