We are on Nextcloud 14.0.6 with contacs 2.1.8 and since some days, there are noch birthdays in the calendar anymore.
We tried do delete the contact list and made a new one, then we imported all the contacts with the birthday-data. But there is no birthday-calendar anymore.
„ occ is in the nextcloud/ directory; for example /var/www/nextcloud on Ubuntu Linux. occ is a PHP script. You must run it as your HTTP user to ensure that the correct permissions are maintained on your Nextcloud files and directories.“