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[Resolved] Critical error on

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Last updated by ilariS 1 day, 1 hour ago.

Assisted by: Shekhar Bhandari.

Author Posts
April 22, 2026 at 6:48 am

ilariS

I believe I found a bug.

I tried updating English translation on ACF option page and got critical error on WordPress when trying to save. I can update the content on Finnish version of the option page without errors. The error did not occur on normal WordPress pages.

Attached some images of my setup.

Here is error message I got (in finnish):

WordPressin versio 6.9.4
Nykyinen teema: Divi (versio 4.27.6)
Lisäosa: Advanced Custom Fields Multilingual (versio 2.2.3)
PHP versio 8.3.30

Virheen lisätiedot
===================
Tiedoston /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/acfml/classes/Options/EditorHooks.php rivillä 328 havaittiin virhe lajia E_ERROR. Virheviesti: Uncaught Error: Undefined constant "ACFMLOptionsICL_STRING_TRANSLATION_COMPLETE" in /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/acfml/classes/Options/EditorHooks.php:328
Stack trace:
#0 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/acfml/classes/Options/EditorHooks.php(314): ACFMLOptionsEditorHooks->addToTranslationsQueue()
#1 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/acfml/classes/Options/EditorHooks.php(296): ACFMLOptionsEditorHooks->registerFieldTranslation()
#2 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/acfml/classes/Options/EditorHooks.php(165): ACFMLOptionsEditorHooks->onUpdateTranslationValue()
#3 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/class-wp-hook.php(343): ACFMLOptionsEditorHooks->onUpdateValue()
#4 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#5 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/advanced-custom-fields-pro/includes/acf-value-functions.php(244): apply_filters()
#6 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/advanced-custom-fields-pro/includes/acf-value-functions.php(287): acf_update_value()
#7 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/advanced-custom-fields-pro/includes/acf-form-functions.php(174): acf_update_values()
#8 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/class-wp-hook.php(341): _acf_do_save_post()
#9 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#10 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/plugin.php(522): WP_Hook->do_action()
#11 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/advanced-custom-fields-pro/includes/acf-form-functions.php(152): do_action()
#12 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-content/plugins/advanced-custom-fields-pro/pro/admin/admin-options-page.php(100): acf_save_post()
#13 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/class-wp-hook.php(341): acf_admin_options_page->admin_load()
#14 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/class-wp-hook.php(365): WP_Hook->apply_filters()
#15 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-includes/plugin.php(522): WP_Hook->do_action()
#16 /var/www/vhosts/roimarantasavu.fi/httpdocs/wp-admin/admin.php(242): do_action()
#17 {main}
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