dominykasN

Problem:
The client encountered a critical error during stock data import using WP All Import and WPML, with a TypeError related to 'array_filter()' in 'class-wpml-element-translation-package.php'. Additionally, enabling the WPML ALL import addon caused the front end to break.

Solution:
We recommend the following steps to resolve the import error and front end issues:
1. Update Everything: Ensure all WPML components, WP All Import Pro, and the WPML All Import add-on are updated to the latest versions.
2. Check Import Data: Review your import file to ensure that custom fields—especially those containing arrays—have proper values.
3. Test with One Entry: Run the import with just one post/page to see if it processes successfully.
4. Debugging: Enable WordPress debug mode by adding the following lines to your wp-config.php file:

define('WP_DEBUG', true);<br />define('WP_DEBUG_LOG', true);<br />define('WP_DEBUG_DISPLAY', false);

Then try the import again and check the /wp-content/debug.log file for errors.

If these steps do not resolve the issue, please consider using WPML Export and Import as WP All Import is now a legacy plugin. More details can be found here: Legacy WPML All Import and WPML Export and Import.

This solution might be irrelevant if it's outdated or not applicable to your case. We highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML support forum.