This thread is resolved. Here is a description of the problem and solution.
Problem:
The client is unable to add a site key in the backend to register WPML.
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 if it exists.
3. Log in to your site, go to the Dashboard >> Plugins >> Add new plugin >> Commercial tab and click the Unregister WPML from this site link if it exists.
4. Then click the Register WPML link.
5. Click the Get a key for this site link.
6. It will generate the Key for your site.
7. Copy the key, and paste it back into the input box, and press the Register button.
If these steps do not resolve the issue, please provide more details about the problem, such as whether you are unable to see the input box to enter the site key, or if the input box is visible but disabled.
Please note that this solution might be irrelevant if it's outdated or not applicable to your case.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.
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