Problem: You are experiencing deprecated warnings for preg_match in the WPML String Translation plugin while using the WP backend. The error message indicates that passing null to parameter #2 ($subject) of type string is deprecated, located in wp-content/plugins/wpml-string-translation/classes/slug-translation/custom-types/wpml-st-slug-custom-type.php:69. Solution: We recommend updating to the latest version of WPML, specifically to version 4.6.12, which addresses this issue. If the problem persists after updating, or if this solution becomes outdated, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have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 you need further assistance, please do not hesitate to open a new support ticket or visit our support forum at WPML Support Forum.
