Background of the issue:
I am trying to resolve an error message on my site hidden link. The site is showing an error related to WPML String Translation being enabled but not effective because WPML is outdated. However, no update is available for the plugin. The plugin info shows WPML Multilingual CMS version 4.6.15 by OnTheGoSystems.
Symptoms:
The error message states: 'WPML String Translation is enabled but not effective, because WPML is outdated. Please update WPML first.'
Questions:
How do I update WPML if no update is showing on the plugin page?
Why does the WPML website show my site as out of date?
If you do not see the updates, you might need to click the Check for updates button in the Plugins → Add New Plugin → Commercial tab.
You can check the latest released versions under "My Account -> Downloads" on this site. Instructions to update can be found here: http://wpml.org/faq/install-wpml/
Please remember to backup your database before you proceed.
Let me know if the issue persists after an update has been done.