Centreon installed properly (debian11) without error

All services running (cbd, apache2, mariadb, gorgoned, centengine...)

When I try to create the first host, “Check Command” box is empty (no plugin listed

inside).

When (i) is clicked, we get a popup : “ sh: 1: /usr/lib/nagios/plugins: Permission denied “

(all files under /usr/lib/nagios/plugins directory are root:root)

Ever seen this issue ?

Thanks