The bad news is that I now seem unable to do a backup.
[ nc-backup ] (Wed Nov 23 17:33:36 CET 2022)
check free space...
/usr/local/bin/ncc: line 3: 14099 Segmentation fault ${SUDO} php /var/www/nextcloud/occ "$@"
/usr/local/bin/ncc: line 3: 14102 Segmentation fault ${SUDO} php /var/www/nextcloud/occ "$@"
Abort...
/usr/local/bin/ncc: line 3: 14106 Segmentation fault ${SUDO} php /var/www/nextcloud/occ "$@"
/usr/local/bin/ncc: line 3: 14110 Segmentation fault ${SUDO} php /var/www/nextcloud/occ "$@"