This thread is resolved. Here is a description of the problem and solution.
Problem:
You are experiencing broken HTML in the language switcher column on the 'Pages' screen in the WordPress admin.
Solution:
We recommend taking a full backup of your site first. Then, deactivate all plugins except for WPML and switch to a default theme to check if the issue persists. This step will help determine if the problem is caused by a plugin or theme conflict.
If this solution does not resolve your issue or seems outdated, please visit our known issues page to check for related problems and confirm that you have the latest versions of themes and plugins installed. If necessary, do not hesitate to open a new support ticket with us for further assistance.
This is the technical support forum for WPML - the multilingual WordPress plugin.
Everyone can read, but only WPML clients can post here. WPML team is replying on the forum 6 days per week, 22 hours per day.
This topic is split from https://wpml.org/forums/topic/error-msg-in-admin-please-activate-the-wpml-string-translation-plugin-to-convert-rank-math-setting/