NCP 1.50.3: Segmentation faults hindering backups

After some hickups probably generated by going to PHP 8.1 (see NCP 1.50.3: Nextcloud check - error - #6 by Gorf) now I am unable to do a backup from NCP panel.

[ 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 ${SUDO} php /var/www/nextcloud/occ “$@”

I am using a Raspi 3b.

And I have found this here: Segmentation Fault with occ command

But I still do not know how to solve this.

Any help appreciated.