Problem: You are trying to change your site's status from development to production after migrating, and your site now displays a banner stating 'This site is registered on wpml.org as a development site'. Solution: If you're experiencing this issue, we recommend you try the following steps: 1. Log in to your WPML.org account and navigate to the Sites page. 2. Delete the existing site key. 3. Log in to your site, go to the Dashboard >> Plugins >> Add new > Commercial tab and click the Unregister WPML from this site link if it exists. 4. Click the Register WPML link. 5. Click the Get a key for this site link to generate a new key. 6. Copy the new key, paste it into the input box, and press the Register button. 7. Clear all types of site/server/CDN cache. For more detailed instructions, please refer to our documentation: How to remove the 'This site is registered on WPML.org as a development site' notice.
Please note that this solution might be irrelevant if it's outdated or not applicable to your case.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 issue persists, please open a new support ticket.