Fatal error: Uncaught Exception: item should be a Collection or an array

This is the technical support forum for WPML - the multilingual WordPress plugin.

Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.

Tagged: Exception

This topic contains 2 replies, has 2 voices.

Last updated by kevinB-5 1 year, 6 months ago.

Assisted by: Long Nguyen.

Author	Posts
June 2, 2023 at 9:35 am #13760209
kevinB-5	I have installed: - WPML Multilingual CMS (4.6.3) - Advanced Custom Fields Pro (6.1.6) - Advanced Custom Fields Multilingual (2.0.5) I configured a secondary language. Now I want to make all Options pages translatable, so I configure all options to 'copy', 'copy once' and so on. After doing this, I duplicated the options page to the secondary language. Everything works. But now, if I want to make a change to the fields for the primary language and save, I get the following fatal error: "Fatal error: Uncaught Exception: item should be a Collection or an array or an object in /Users/Dominique/Local/studio-figments/app/public/wp-content/plugins/sitepress-multilingual-cms/vendor/wpml/fp/core/Obj.php on line 112"
June 6, 2023 at 2:25 am #13774885
Long Nguyen Supporter Languages: English (English ) Timezone: Asia/Ho_Chi_Minh (GMT+07:00)	Hi Kevin, Thank you for contacting WPML support, I'd be happy to help you with this issue. Checking the debug info, I see there are some issues, please fix it and check the issue again to see how it goes. 1. - Go to ACF > Switch the language to Dutch with the language switcher at the topbar. - Delete all field groups in the Dutch language. - Go to WPML > Settings > Post Types Translation > Set the post type "acf-field-group" to Not Translatable. 2. Increase WP memory limit: The minimum requirements are 128M, but we do recommend 256M and the debug information of your site shows it set to 40M. Please check this link for more details https://wpml.org/home/minimum-requirements/. You can increase it by adding the following code in your wp-config.php file, right before the /* That’s all, stop editing! Happy publishing. */ line:  define( 'WP_MAX_MEMORY_LIMIT', '256M' ); define( 'WP_MEMORY_LIMIT', '128M' ); After adding the code you can confirm that the memory was changed correctly from WPML > Support > WordPress > Memory limit. 3. Install and activate the plugin WPML String Translation. ❌ IMPORTANT: Please backup your database and website before proceeding ❌ Refer documentation https://wpml.org/documentation/related-projects/translate-sites-built-with-acf/ Look forward to your reply. Thanks
June 6, 2023 at 9:43 am #13777191
kevinB-5	Hi Nguyen, As per the other topic (https://wpml.org/forums/topic/distributing-fields-with-acf-json/) about the same site, I have changed the translate setting and this problem now no longer occurs.