Then, go to Plugins -> Add New -> Commercial and click the link to unregister WPML from your site. You will then see the field where you can enter the new site key to re-register the new key.
Once this is done, try these steps:
1. Switch to the secondary language (top admin bar)
2. Go to Appearance → Editor
3. Delete the translated template entry there (secondary language only)
4. Go to WPML -> Translation Dashboard and retranslate the template again
If the translated page was created/translated before the template translation finished, the translated page can end up stuck on the default template. In that case, re-send/re-translate the page after the template translation is completed.
Please let me know if this resolves the issue for you.
