Cart won't update quanity or apply coupons

I updated to the latest version of Woocommerce and updated my theme to the latest version when products are added to the cart if you try to update the quantity or apply a coupon code the cart does not update.

I have created a staging URL so you can check.

I don’t think it is a cache plugin issue either because I turned off ALL the options on WP Rocket and saved. I’ve cleared/purged the cache. And then I’ve disabled the WP Rocket plugin completely and the issue is still there!

Please could you help with this as we have customers who are trying to order and saying the coupon code is not working properly.

Please find admin login details inside the private content below:

Hello,

I have deactivated the child theme and plugins, the quantity works, provide a coupon to test or check on your own.

Activate the plugins one by one, checking the issue to detect which one causes the problem.

Then activate the child theme.

Best Regards

Thank you for your help.

I activated the plugins one by one and have identified the problem.

Thanks

You are welcome! If you have any questions please feel free to contact us.

Best Regards

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