[Resolved] Php warning on secondary language when Kadence plugins are activated

Problem:
If you're experiencing a PHP warning message in the WordPress Admin when viewing any admin screen in a secondary language, and it only occurs with certain Kadence plugins activated (Kadence Pro, Kadence Blocks, Kadence Blocks Pro), we can help you address this issue.

Solution:
First, we recommend creating a staging site to safely investigate the issue without affecting your live site. You can use your hosting service or a plugin like WP Staging for this purpose. Once the staging site is ready, replicate the problem there by activating WPML + String Translation with all other plugins disabled and a default theme like Twenty Twenty-Four.

If the problem disappears, gradually activate your theme and plugins one by one to isolate the cause. If the issue persists with just WPML + String Translation and Kadence plugins, it indicates a specific conflict between Kadence Pro and String Translation.

To resolve the issue:
1. Navigate to WPML > String Translation.
2. Filter by domain: "Text Domain".
3. Select and delete all the strings in that domain using the "Delete all selected strings" option.

This should remove the PHP warning. The issue arises from incorrect registration of dynamic strings by the Kadence plugin, and we are reaching out to them for a fix.

Please note that this solution might be outdated or not applicable to your case. If the problem persists, we highly recommend checking related known issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If you still need assistance, please open a new support ticket.