Nexcloud.log and audit.log not being written after update from 21.05 to 22.2

Hello guys,
yesterday I updated by web updater from 21.05 to 22.02, everything is working fine except for one thing: both nextcloud.log and audit.log are stuck at yesterday, not a single new line written and this is odd.
I tried disabling and re-enablig the logging app with no success.

I have no errors in apache log files .

Distro is Ubuntu server 20.04.3 LTS, not a docker, just plain old install on LAMP.

This the config in the database:

select * from oc_appconfig where appid like’%log%’;
±----------±------------------±------------+
| appid | configkey | configvalue |
±----------±------------------±------------+
| logreader | enabled | yes |
| logreader | installed_version | 2.7.0 |
| logreader | levels | 11111 |
| logreader | relativedates | 1 |
| logreader | types | |
±----------±------------------±------------+
5 rows in set (0.01 sec)

in config.php I have only the line to configure logging level to 2:
‘loglevel’ => 2,

anyone willing to help locate the problem?
Thank you

Alberto