This thread is resolved. Here is a description of the problem and solution.
Problem:
The client is experiencing issues with transferring the WPML site key to a new domain name, phagetherapygeorgia.eu, from the old site, caucasushealing.com. The client is unable to connect the key on the new site, encountering an error message 'wpml: Unable to register: Site key not matching'. Additionally, the site is running slow after the domain change.
Solution:
1. To resolve the 'Site key not matching' error and transfer the WPML site key to the new domain, you need to re-register the key. Re-registering the key will not affect your translations; it is only necessary to keep WPML updated and to access support and translation features.
2. If you are unsure where to find the option to re-register, navigate to the 'Plugins' section in your WordPress dashboard, then go to 'Add New', and you will find the 'Commercial' tab where you can manage your WPML registration.
Please note that this solution might be outdated or not applicable to your specific case.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 at WPML support forum for further assistance.
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Last updated by 1 month, 4 weeks ago.
Assisted by: Dražen.

