I was trying to debug something else and kept seeing this Forms error kick off at the same time, every time.
2026/06/29 17:37:50 [error] 50689#50689: *11037 FastCGI sent in stderr: "PHP message: PHP Fatal error: Uncaught Error: Call toundefined function cs_dashboard_register_options() in /var/www/dev.biz/htdocs/wp-content/plugins/cornerstone-forms/extension/AdminDashboard/AdminDashboard.php:5
Stack trace:
#0 /var/www/dev.biz/htdocs/wp-includes/class-wp-hook.php(341): {closure:/var/www/dev.biz/htdocs/wp-content/plugins/cornerstone-forms/extension/AdminDashboard/AdminDashboard.php:3}()
#1 /var/www/dev.biz/htdocs/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#2 /var/www/dev.biz/htdocs/wp-includes/plugin.php(522): WP_Hook->do_action()
#3 /var/www/dev.biz/htdocs/wp-settings.php(771): do_action()
#4 /var/www/dev.biz/wp-config.php(88): require_once('...')
#5 /var/www/dev.biz/htdocs/wp-load.php(55): require_once('...')
#6 /var/www/dev.biz/htdocs/wp-admin/upgrade.php(18): require('" while reading response header from upstream, client: 3.214.161.57, server: dev.biz, request: "GET /wp-admin/upgrade.php?step=1 HTTP/1.1", upstream: "fastcgi://unix:/var/run/php/php84-fpm.sock:", host: "dev.biz"
I’m in a WPMU environment.
wp plugin list --field=name
admin-columns-pro
acfml
advanced-custom-fields-pro
ai
akismet
cornerstone-charts
cornerstone-forms
cornerstone-ai
folders
lm-country-globe
lm-country-globe-tiles
media-focus-point
wordpress-multisite-enhancements
multisite-enhancements
nginx-helper
otgs-installer-plugin
redis-cache
s3-uploads
sitedrive
csv-xml-import-for-acf
wpai-acf-add-on
wp-all-import-pro
wpml-cms-nav
wpml-import
wpml-graphql
wpml-media-translation
sitepress-multilingual-cms
wp-seo-multilingual
wpml-sticky-links
wpml-string-translation
bedrock-autoloader
global-media-autoloader
surety-cpt-taxonomies
lm-master-content-sync
svg-support
object-cache.php