Placeholder error

i am getting this error in librenms

this is the output of my ./validate.php


Component Version
LibreNMS 1.43-110-gd9b4fb5
DB Schema 268
PHP 7.2.9
MySQL 5.5.60-MariaDB
RRDTool 1.4.8


[OK] Composer Version: 1.7.2
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[WARN] Your install is over 24 hours out of date, last update: Thu, 20 Sep 2018 20:43:36 +0000
[FIX] Make sure your cron is running and run ./ by hand to see if there are any errors.