Cl-calendarimport NOT COMPATIBLE WITH OWNCLOUD 9 - WON'T FIX

i am looking for a solution to import ical do nextcloud, the autoimport from Georg Ehrke is not compatible since owncloud 9. is there another way to import isc fieles ?
i regular get ics files as an export from emacs orgmode. this files are atomaticaly created, when a new entry is made there. a watchdog takes care , if a new ics file is created, and than i need it automatically imported in the nextcloud calendar.