Hi @mfrashcom,
I see how disruptive this is, especially with customers currently unable to add products to the cart after the update. That kind of break in the purchase flow definitely needs immediate attention and I am keen to help you get this stabilized.
The fatal error you shared points to a missing WooCommerce internal trait, which usually happens when the update did not complete cleanly or when files are out of sync. The first step here would be to reupload the WooCommerce plugin files to ensure nothing is missing. You can do this by deleting the WooCommerce plugin folder and reinstalling the latest version from your dashboard or via FTP.
If the issue started immediately after the update, it would also be useful to temporarily roll back to the previous WooCommerce version that was working, confirm the site behavior returns to normal, and then attempt the update again. This helps confirm whether the update process itself is the trigger. A rollback plugin can help with this if needed.
For the variation issue and disabled Add to cart button, this can sometimes be related to JavaScript errors caused by plugin or theme conflicts after an update. As a test, please try disabling all plugins except WooCommerce and switching temporarily to a default theme such as Storefront or Twenty Twenty Four, then check if variable products can be added to the cart again. A guide for plugin conflict test: https://woocommerce.com/document/how-to-test-for-conflicts/.
To help us look deeper, please share your WooCommerce system status report by going to WooCommerce, Status, Get system report, then Copy for support. Paste the report into https://pastebin.com and share the link here.
Once you carryout the above recommendation and share your status report, we can guide you more precisely on the next steps to get your store fully operational again.
about add to cart it is urgent because now website is disabled
and here is my website statue https://pastebin.com/sMay4Khm
Hi @mfrashcom,
Thank you for sharing your system status report. I had a look, and everything appears generally okay, though I notice you have quite a few active plugins which could potentially conflict with WooCommerce.
I wanted to check if you’ve had a chance to carry out the recommendations from my earlier reply. Just to recap, the next steps would be to try reinstalling WooCommerce to ensure all files are correctly in place. If the issue persists after that, it would be best to perform a plugin conflict test by deactivating all other plugins and testing, then reactivating them one by one to identify any conflicts.
This approach usually helps pinpoint what’s causing the Add to Cart button and variation issues.
Hi @mfrashcom,
and problem in variation after choosing variation submit button keep disabled (urgent) now customers cant add to cart after update
We noticed the issue when using Variation Swatches for WooCommerce (see dedicated thread) and I see in your SSR you’re using this plugin. Could you try disabling the plugin to see if the issue persist?
If so, this is most likely related to the change we announced in Dev Advisory: Add to Cart button disabled by default in variable products in WooCommerce 10.5.
Since we haven’t received any updates from you, I’ll mark this as resolved for now. If you need further assistance, you’re welcome to start a new thread.
We’d love your feedback – please leave us a review: https://wordpress.org/support/plugin/woocommerce/reviews/
