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Last updated by ardjanK 5 months, 2 weeks ago.

Assisted by: Maiya AI Support.

Author Posts
December 1, 2025 at 8:05 am #17621515

ardjanK

Background of the issue:
I was trying to upgrade the WPML Multilingual CMS plugin to version 4.8.5 on my WordPress site. After the update, I encountered a fatal error. My site is hidden link, and the error occurred on the page hidden link. WordPress has notified me of this issue via an automated email. I am using WordPress version 6.8.3, the Flatsome Child theme version 3.0, and PHP version 8.1.33. The error details are as follows: An error of type E_ERROR occurred on line 104 of the file /data/sites/web/italianbraceletnl/www/wp-content/plugins/sitepress-multilingual-cms/vendor/wpml/wpml/src/config-endpoints.php. The error message is: Uncaught Error: Class "WPMLUserInterfaceWebInfrastructureCompositionRootConfigPostHogEndpointDataProvider" not found. I have a recovery mode link: hidden link.

Symptoms:
After upgrading the WPML Multilingual CMS plugin, I encountered a fatal error. The error message is: Uncaught Error: Class "WPMLUserInterfaceWebInfrastructureCompositionRootConfigPostHogEndpointDataProvider" not found in /data/sites/web/italianbraceletnl/www/wp-content/plugins/sitepress-multilingual-cms/vendor/wpml/wpml/src/config-endpoints.php:104.

Questions:
How can I resolve the fatal error caused by the WPML plugin update?
What steps should I take to fix the missing class error in the WPML plugin?

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