carlos-danielV

Problem:
The client was experiencing a fatal error after updating to PHP 8.1, which suggested that the plugin was trying to use "isset" with an array instead of an object.

Solution:
We identified this as a known issue and provided a workaround. We recommended adding the following code to the theme's functions.php file after making a full backup of the site:

This workaround should allow the client to use the newer version of PHP without crashing the site. We also provided a link to track the progress of the issue: https://wpml.org/errata/payzen-for-woocommerce-php-fatal-error-uncaught-typeerror-md5-argument-1-string-must-be-of-type-string-array-given/.

Please note that this solution might be irrelevant if it's outdated or not applicable to your case. If the issue persists, 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 needed, please open a new support ticket at our support forum.