Problem: The client was experiencing a fatal error on all products with a gallery after using the WPML plugin to translate from Polish to Czech and enabling media translation settings.
Solution: 1. We asked the client if the issue disappeared when filling all the custom fields (ACF) with test information. 2. We inquired whether these fields were set to be translatable, copied, or copied once. 3. We guided the client to check the configuration by going to Custom Fields -> Edit the Field group that contains these fields -> Edit the fields. 4. We provided a link to a guide for setting the correct configuration: https://wpml.org/documentation/related-projects/translate-sites-built-with-acf/ 5. After consulting with colleagues, we concluded that WPML does not generate errors if ACFs are left empty in the original content, suggesting that the issue might be due to custom code or third-party plugin/theme functionality.
If this solution does not apply to your case, or if it seems outdated, we recommend opening a new support ticket. We also 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 further assistance is needed, please contact us in the WPML support forum.
