Polling device ucd-diskio PHP Error(2)

./validate.php

Component Version
LibreNMS 25.6.0-51-gbaef4263a (2025-06-24T12:57:45+03:00)
DB Schema 2025_06_11_173916_drop_alert_rule (344)
PHP 8.3.6
Python 3.12.3
Database MariaDB 11.8.2-MariaDB-ubu2404
RRDTool 1.7.2
SNMP 5.9.4.pre2
===========================================

[OK] Composer Version: 2.8.9
[OK] Dependencies up-to-date.
[OK] Database Connected
[OK] Database Schema is current
[OK] SQL Server meets minimum requirements
[OK] lower_case_table_names is enabled
[OK] MySQL engine is optimal
[OK] Database and column collations are correct
[OK] Database schema correct
[OK] MySQL and PHP time match
[OK] Active pollers found
[OK] Dispatcher Service not detected
[OK] Locks are functional
[OK] Python poller wrapper is polling
[OK] Redis is functional
[OK] rrdtool version ok
[OK] Connected to rrdcached

poller with -d click

loop0 loop1 loop2 loop3 loop4 loop5 loop6 sda3 dm-0 loop7 PHP Error(2): Undefined array key 15 in /opt/librenms/includes/polling/ucd-diskio.inc.php:14
loop8 PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:31
PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:32
PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:33
PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:34
PHP Error(2): Undefined array key 16 in /opt/librenms/includes/polling/ucd-diskio.inc.php:14
loop9 PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:31
PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:32
PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:33
PHP Error(2): Trying to access array offset on null in /opt/librenms/includes/polling/ucd-diskio.inc.php:34
sda sda1 sda2 sda3