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Problem:
The client reported slow page generation times in the admin panel, particularly when using the VikBooking plugin or general admin pages. They noted significant memory usage and load on WPML-related calls via Query Monitor, despite having Redis Object Cache and WP Rocket active. The client also inquired about integrating VikBooking with WPML for multilingual support, including translating booking texts and emails.

Solution:
We addressed the performance issues by suggesting the client enable WordPress's debug mode to identify specific errors causing the slowdown. Instructions were provided to modify the

wp-config.php

file to enable detailed logging. For the integration of VikBooking with WPML, we clarified that VikBooking is not officially compatible with WPML. We provided links to developer guides on achieving WPML compatibility and a list of officially compatible booking plugins as alternatives. Additionally, we offered a sandbox site for testing VikBooking with WPML.

If this solution does not resolve your issue, or if it seems outdated or irrelevant to your specific case, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the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. If further assistance is needed, please open a new support ticket at WPML support forum.