I am receiving a constant error in my Apache2 Error Log file:

PHP Notice: Array to string conversion in /var/www/plugins/system/azrul.system/pc_includes/ajax.php on line 320

This is happening on a production site and does not appear on the site, but only in the error Log.

Hi Steven,

This is not an error but just notice.
You can disable Display Errors in Joomla! and notice will be gone.

Backend -> Global Configuration -> Server -> Error reporting -> set to None or Default.

or from php.ini
error_reporting(E_ALL & ~E_NOTICE);

www.php.net/manual/en/function.error-reporting.php

Regards,
Albert

Hi Steven,

We have not received any response back from you in over 7 days, and would like to know if you consider this issue to be resolved. If you have any further questions, simply reply to this post.

Regards,
Albert