[Resolved] Some of the URL is not working

Hello,
Thank you for contacting WPML support.

1.- It seems there is a third party functionality causing a conflict in the code. I would like to ask you to follow this steps in order to isolate the cause of the issue:
- Back up your site first before making any change, this is for security reasons.
- Update all outdated plugins and themes.
- Flush all cache memory.
- Activate the debug mode by following the steps described in this link: https://wordpress.org/support/article/debugging-in-wordpress/
- Deactivate all the plugins that are not related to WPML, Woocommerce and Woocommerce Multilingual.
- Switch for a moment to a WordPress default theme like Twenty Seventeen.
- If the issue is gone, activate one by one to see with which one there is an interaction issue.

Could you tell me the result of this steps?

2.- Please increase the PHP Memory Limit. Minimum requirements are 128Mb: https://wpml.org/home/minimum-requirements/
You can add this to wp-config.php to increase WP memory:

/** Memory Limit */
define('WP_MEMORY_LIMIT', '128M');
define( 'WP_MAX_MEMORY_LIMIT', '128M' );

- Add it above the line /* That's all, stop editing! Happy blogging. */

Kind regards,
Carlos

Hi there,
Thank you very much for your feedback.

I took a deeper look at the issue and it seems that the language switcher at the top is not working correctly. I added a language switcher at the bottom of the page to test it (is still there so you can test it, and can be deactivated in WPML -> Languages -> Footer language switcher -> De-select the option) and you can see that the cart is working correctly.

I also realized that the Contact page wasn't translated, so I duplicated it to Arabic language and you can see that when you switch to Arabic there is no error, although the page is empty which is a different issue.

Could you confirm that the original issue is solved?

Regards,
Carlos

Note: Multi-currency option is activated in Woocommerce -> Woocommerce Multilingual -> Multi-currency tab but no secondary currency has been added, which may cause issues too.