PHP warnings related to CS Forms

Support
#1

Hi,

I was checking the site log files and found quite a few of these:

    [25-Mar-2026 16:12:19 UTC] PHP Warning:  Undefined array key "post_id_control" in /var/www/mostriathlon.ru/public_html/wp-content/plugins/cornerstone-forms/extension/ACF/ACFAction.php on line 36
    [25-Mar-2026 16:13:07 UTC] PHP Warning:  Undefined array key "post_id_control" in /var/www/mostriathlon.ru/public_html/wp-content/plugins/cornerstone-forms/extension/ACF/ACFAction.php on line 36
    [25-Mar-2026 16:13:16 UTC] PHP Warning:  Undefined array key "post_id_control" in /var/www/mostriathlon.ru/public_html/wp-content/plugins/cornerstone-forms/extension/ACF/ACFAction.php on line 36
    [25-Mar-2026 16:24:48 UTC] PHP Warning:  Undefined array key "post_id_control" in /var/www/mostriathlon.ru/public_html/wp-content/plugins/cornerstone-forms/extension/ACF/ACFAction.php on line 36
    [25-Mar-2026 16:24:53 UTC] PHP Warning:  Undefined array key "post_id_control" in /var/www/mostriathlon.ru/public_html/wp-content/plugins/cornerstone-forms/extension/ACF/ACFAction.php on line 36
    [25-Mar-2026 16:29:25 UTC] PHP Warning:  Undefined array key "post_id_control" in /var/www/mostriathlon.ru/public_html/wp-content/plugins/cornerstone-forms/extension/ACF/ACFAction.php on line 36

I wanted to report that as the CS Forms are relatively new.

#2

Hello John,

Thank you for reporting this. We’ve forwarded the details to our development team, who will prioritize and address them soon.

Thanks

#3

Thank you @prakash_s,

I observed that my facets in the CS Form are no longer functioning. Maybe this is the reason why maybe not. Before the recent update they worked. This is the page link.