Headers only when accessing Librenms webpage?

Please excuse me as I’m very new to Linux.

When accessing my Lebrenms webpage I’m getting headers only and no graphics. When running “validate.php” I’m getting the below warning message. How do I go about resolving the issue below and could it be causing my webpage to fail to load? Thank you very much!

[email protected]:~# sudo /opt/librenms/validate.php

Component Version
LibreNMS 1.37-102-g2537291
DB Schema 247
PHP 7.0.28-0ubuntu0.16.04.1
MySQL 10.0.34-MariaDB-0ubuntu0.16.04.1
RRDTool 1.5.5


[OK] Composer Version: 1.6.3
[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[WARN] Your install is over 24 hours out of date, last update: Fri, 23 Mar 2018 20:23:02 +0000
[FIX] Make sure your daily.sh cron is running and run ./daily.sh by hand to see if there are any errors.

Most likely php max mem. We have a config option you can adjust to increase this (look in the docs) or you can change php.ini

I was able to find the command within the docs but I’m unsure where the file is that I need to adjust. Do you mind pointing me in the right direction? Also, how much should I increase it by?

*** From the docs ***

PHP Settings

You can change the memory limits for php within config.php. The value is in Megabytes and should just be an int value:

$config[‘php_memory_limit’] = 128;

you set that inside of your /opt/librenms/config.php

How much to set depends on your enviroment. Try 256 first see if that helps.