This thread is resolved. Here is a description of the problem and solution.
Problem:
The client reported an error stating 'WPML could not load configuration files, which your site needs.' The RETRY button was not functioning, and despite clearing the log, the issue persisted. The client was concerned about the impact of this error on their site's functionality, especially with an upcoming site update.
Solution:
We advised the client to ensure their server's connection settings were correct and to check if any IP addresses needed to be whitelisted by their hosting provider. We recommended following the steps in our documentation on connection issues at https://wpml.org/faq/wpml-plugin-cannot-connect-to-wpml-org/ and also referred them to an errata page for a similar issue at https://wpml.org/errata/wpml-could-not-load-configuration-files-which-your-site-needs/. Additionally, we emphasized the importance of keeping all WPML plugins updated for better stability and security, instructing the client to perform a full backup before updating.
If this solution does not resolve your issue, or if it seems outdated or irrelevant to your specific case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the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. Should you need further assistance, please do not hesitate to open a new support ticket at WPML support forum.
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