Fix an Add to Cart Button Issue on My WooCommerce Store

I run a WordPress store using WooCommerce and need help resolving an inconsistent Add to Cart button issue on one product page. At times, a visitor clicks the button and the product is not added to the cart. The visitor may need to refresh the page before the button works as expected. The issue appears isolated to this product page, but the exact cause has not yet been identified. I’m looking for a developer who can reproduce the behavior, inspect relevant browser-console errors, and check for a possible JavaScript or plugin conflict. A recently installed plugin may be relevant, although I do not want any plugin disabled or removed without first understanding the impact and getting approval. The goal is a focused diagnosis and correction within the agreed scope. The existing store design, product content, checkout flow, and unrelated functionality should remain unchanged. Specific requirements / scope of work Inspect the affected WooCommerce product page and reproduce the intermittent Add to Cart behavior. Check the browser console for relevant JavaScript errors and review the browser/network behavior where useful. Determine whether the product is simple or variable and confirm whether required selections (such as attributes or quantity) are configured correctly. Investigate likely JavaScript, theme, or plugin conflicts, including the recently installed plugin identified by the client. If appropriate and authorized, isolate a conflict using a staging site or another safe diagnostic method. Implement a focused fix only if the cause is within the agreed single-page scope. Test that the intended product is added to the cart and that the cart count or cart contents update as expected. Confirm that the existing page design and unrelated store functionality remain materially unchanged. Provide a concise completion summary describing the cause, adjustment, and checks performed.