ERREUR ATOUPRO

On component : localisation/arrondissment/cat0

Error: 2 Undefined variable $id_cat3

StackTrace #0 /var/www/vhosts/www.atoupro.com/system/components/localisation/arrondissment/cat0.php(23): Whoops\Run->handleError()
#1 /var/www/vhosts/www.atoupro.com/index.php(163): require_once('...')
#2 {main}

GET

Array
(
    [component] => localisation/arrondissment/cat0
    [num_dep] => 54
    [name_dep] => Meurthe-et-Moselle
    [name_arr] => Lunéville
    [id_arr] => 216
    [url] => 54-Meurthe-et-Moselle/Lunéville-arrondissement-216.html
)