My personal guess is: According to the last update from WooCommerce they changed something for the add to card for the variable products. So i think PPOM is maybe not compatible anymore.
Changelog of WooCommerce i`m talking about: * **Fixed attribute options being incorrectly disabled** in the Add to Cart with Options block for variable products whose attribute slugs contain hyphens. The issue occurred because PHP passes attribute names as slugs (e.g., `some-name`) while the Store API returns labels with spaces (e.g., `some name`), causing strict comparisons to fail. The fix updates `normalizeAttributeName()` to replace hyphens with spaces, ensuring consistent normalization across all comparison points. [#63647](https://github.com/woocommerce/woocommerce/pull/63647) * Also if you`re interested, here is the link to my support request in WooCommerce [https://wordpress.org/support/topic/products-can-no-longer-be-added-to-the-cart-2/#post-18855552](https://wordpress.org/support/topic/products-can-no-longer-be-added-to-the-cart-2/#post-18855552) * Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/) In reply to: [[WooCommerce] products can no longer be added to the cart](https://wordpress.org/support/topic/products-can-no-longer-be-added-to-the-cart-2/) * Thread Starter [vaning](https://wordpress.org/support/users/vaning/) * (@vaning) * [7 months ago](https://wordpress.org/support/topic/products-can-no-longer-be-added-to-the-cart-2/#post-18855455) * Thank you very much for the quick response. Here is my response to your questions: * I noticed it today. I have automatic updates enabled for WooCommerce, so I suspect the problem has been going on for a few days. PPOM Fields hasn’t been updated in quite some time. I’ve already contacted their support as well. However, both plugins are up to date. * It affects all my products, but they all use the additional fields from PPOM Fields. When I deactivate the additional fields, the shopping cart is still displayed as empty. * I’m using the Astra theme. According to the conflict test, WooCommerce works normally when all other plugins are deactivated. It also works when all other plugins except PPOM Fields are activated. * Here is the link to the System Status Report: [https://pastebin.com/8XXjMhTD](https://pastebin.com/8XXjMhTD) Viewing 2 replies - 1 through 2 (of 2 total)