Thanks for contacting WPML forums support. Before your ticket is assigned to one of my colleagues, please allow me to walk you through some initial debugging steps. This will help speed up the support process.
First of all, sorry for the late reply; it was due to a higher workload.
Please let us know how this table of contents is created and if it works in the default language.
If it's not working on the default language, please deactivate WPML for a moment and check it.
I would need to look closely at your site, so I would need to request temporary access (WP-Admin and FTP) Preferably to a test site where the problem has been replicated.
Your answer will be private, meaning only you and I can access it.
❌ Please backup your database and website ❌
✙ I need your permission to deactivate and reactivate the plugins and themes and change site configurations. This is also why the backup is critical.
✙ I also need your permission to take a local copy of your site to debug the issue without affecting your live site.
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