when trying to login it directs me to:
error_bad_word.php?accesscheck=%2Fannunci%2Fprova.php
So it looks like the login is redirecting to the login success page annunci/prova.php:
"successRedirect" => "annunci/prova.php",
and the annunci/prova.php page is refusing access. What access rule is applied to the annunci/prova.php page?
is the server configured to store sessions properly, use the session test page form the following thread to check:
showpost.php?p=23826&postcount=2