Pentaho Ce Audit Issue

[TENAGLIUS]

Good morning everyone,
I work on pentaho in version 6.1.0.1.196
When I try to update the "pentaho ce audit" the page stays loading and nothing happens, indeed after I refresh it a few times there is really no more data.
The steps I take are "Tools/Pentaho Ce Audit/ and then I click the wheel to update"

I also tried using this command
http://your_server:yourPort/pentaho/plugin/pentaho-ce-audit/api/job_refresh
But unfortunately I get the following response
"The connection has timed out
The server at ...* is taking too long to respond."

Could anyone help me?

Thank you