[Resolved] Site Crashes After Updating WooCommerce

Problem:
After updating WooCommerce, your webshop started crashing, displaying an 'Internal Server Error'. Disabling the WPML Multilanguage CMS plugin temporarily resolves the issue.
Solution:
1. First, try to re-save the Permalinks from the Settings >> Permalinks page by pressing the Save Changes button.
2. If the problem persists, back up your site and add the suggested code in the functions.php file of your active theme. You can find the necessary code and instructions here: WPML FAQ. After adding the code, re-save the permalinks.
3. If the issue continues, enable error reporting by modifying your 'wp-config.php' file. Replace 'define('WP_DEBUG', false);' with the following code:

// Enable WP_DEBUG mode<br />define( 'WP_DEBUG', true );<br /><br />// Enable Debug logging to the /wp-content/debug.log file<br />define( 'WP_DEBUG_LOG', true );<br /><br />// Disable display of errors and warnings<br />define( 'WP_DEBUG_DISPLAY', false );<br />@ini_set( 'display_errors', 0 );<br /><br />define( 'SCRIPT_DEBUG', true );

After making these changes, access your site again to see if a debug.log file is created in the /wp-content/ directory, and share its contents if available.

If these steps do not resolve the issue or if it reoccurs, it might be due to outdated solutions or a different underlying problem. We highly recommend checking related known issues at WPML Known Issues, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket.