katerinaP-3

Problem:
The client is unable to activate the OTGS plugin despite receiving a 'Plugin activated' message, and continues to receive a message to activate the WPML String Translation plugin for Rank Math settings, even though it is already active.
Solution:
The OTGS Installer plugin is only necessary during the initial installation of WPML. Since WPML plugins are already installed on your site, the OTGS Installer is no longer needed and can be safely deleted. It is expected behavior that it cannot be activated in this case.
The issue with the Rank Math plugin displaying a message to activate the WPML String Translation plugin is a known issue. This is a false-positive notice and is expected to be resolved in future Rank Math releases. As a temporary workaround, please refer to the following guide: https://wpml.org/errata/rank-math-seo-false-string-translation-activation-notice/

If this solution does not resolve your issue or seems irrelevant due to being outdated or not applicable to your case, we recommend opening a new support ticket. We also 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. For further assistance, please visit our support forum at https://wpml.org/forums/forum/english-support/.