Error discovering sensors module - UPS Delta

Hello everyone,

I need a hand please. I have a problem with the Delta UPS:

This is the error when I launch ./discovery.php

Current: RFC1628 .Error discovering sensors module for TypeError: Unsupported operand types: string / int in /opt/librenms/includes/discovery/sensors/current/
Stack trace:
#0 /opt/librenms/includes/discovery/ include()
#1 /opt/librenms/includes/discovery/ sensors()
#2 /opt/librenms/includes/discovery/ include(‘…’)
#3 /opt/librenms/discovery.php(106): discover_device()
#4 {main}
Unsupported operand types: string / int {“exception”:“[object] (TypeError(code: 0): Unsupported operand types: string / int at /opt/librenms/includes/discovery/sensors/current/”}

This is ./validate.php:

librenms@ubuntuserver:~$ ./validate.php

Component Version
LibreNMS 23.7.0 (2023-07-17T06:42:41+02:00)
DB Schema 2023_04_27_164904_update_slas_opstatus_tinyint (252)
PHP 8.1.12
Python 3.8.10
Database MariaDB 10.3.38-MariaDB-0ubuntu0.20.04.1
RRDTool 1.7.2
SNMP 5.8

[OK] Composer Version: 2.5.8
[OK] Dependencies up-to-date.
[OK] Database connection successful
[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 unavailable
[OK] rrdtool version ok
[OK] Connected to rrdcached

Can someone please help me?

Thank you!!

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