Cron with NC snap version 22.2.3

Cron does not work on my NC instance ( 22.2.3)

Cron is set :
nextcloud.occ config:list | grep background
“backgroundjob”: {
“backgroundjobs_mode”: “cron”,

I performed several search… but do not find solution.

My tries :
from snap php install :
/var/lib/snapd/snap/nextcloud/29223/bin/php -f /var/lib/snapd/snap/nextcloud/29223/htdocs/cron.php
error while loading shared libraries: cannot open shared object file: No such file or directory

From local php install :
php -f /var/lib/snapd/snap/nextcloud/29223/htdocs/cron.php
App directory “/htdocs/apps” not found! Please put the Nextcloud apps folder in the Nextcloud folder. You can also configure the location in the config.php file.

I need it to get notification, when a form is filled.
I set send mail notification in admin activity for forms.

May you help ? Advice me ?
Best Regards

I reboot the server, cron works now