Hello, i am trying to make a simple login form based on LLDAP account, but it fails despite correct credentials at the bind stage, with a strange error :

2023-05-09T14:58:39.989541476+00:00  ERROR    :rotating_light: [error]: [LDAP] Service Error: while handling incoming messages: while receiving LDAP op: ldapmsg invalid

LLDAP is correctly connected to Jellyfin so i don't know where my mistake is. And my code is basically really basic :

$ldap_server = "192.168.0.220";
$ldap_port = 3890;
$ldap_conn = ldap_connect($ldap_server, $ldap_port);

if (!$ldap_conn) {
    echo "Can't connect";
    exit;
}

$ldap_dn = "cn=readonly,ou=people,dc=chaussenot,dc=net";
$ldap_password = "Readonly";
$ldap_bind = ldap_bind($ldap_conn, $ldap_dn, $ldap_password);

if (!$ldap_bind) {
    echo "Can't auth to LDAP";
    exit;
}

Did someone face the same issue ? Thanks