problem when i download a pack from centreon > connectors > Monitoring Connectors

i’m wrong, the check command are OK only the plugin was missing and wasn’t downloaded 

Hello, I believe only since a few versions you need to enable a box to allow for auto installation of plugins.

Is that option on ? Monitoring Connectors | Centreon Documentation
Else you can always install the associated plugins manually through the package managed (based on the documentation page of the connector you used)

yes I done like that I installed the plugin manually as write to the documentation. 

Are you using a poller then maybe ? As plugins needs to be installed on the poller executing the check.

i don’t have poller, only the  central.

As you installed the plugin manually, you can try the following.

Lets supposed that you installed the plugin “centreon-plugin-Hardware-xxxxxxxx”

You can use the command

rpm -ql centreon-plugin-Hardware-xxxxxxxx

This should list all the files installed by the plugin, and you can look if they are placed at the right place.

If they are not, maybe try a reinstall with a 
 

dnf reinstall centreon-plugin-Hardware-xxxxxxxx