'unknown error' when adding items to cart

Topic summary

Issue: Customers see an “unknown error” when adding in‑stock items to cart in Safari and Chrome. Despite the error, the item is added; the cart icon count does not update. A screenshot was referenced.

Affected sites: coralandtusk.com (original report), statementfabricsco.com (same issue), generousintentions.com (still experiencing it).

Identified cause and fix: The original case traced the problem to a pre‑order app conflict. Developers resolved it by re‑indexing the website. After learning this, another affected user later confirmed their site was fixed as well.

Current status: Partially resolved. The approach (addressing the pre‑order app and re‑indexing) resolved issues for some, but at least one user reports the error persists on their site. No single universal fix or official root cause beyond the app conflict has been established.

Key details:

  • Browsers: Safari and Chrome.
  • Behavior: Error shows on add‑to‑cart; cart page reflects added item; cart icon count not updating.
  • Media: A screenshot was cited to illustrate the error state.
Summarized with AI on January 23. AI used: gpt-5.

Hi there,

Some customers seem to experience an ‘unknown error’ message when adding an in stock item to their cart. The issue is happening in Safari and Chrome. The item is still added to the shopping cart when I click on Cart, but the cart icon does not show the # of items in the cart. See screenshot below, and thank you!

Also, our site is: https://coralandtusk.com/

Hi there,

I’ve been having the same problem, how did you resolve this issue?

My url is: statementfabricsco.com

Hi there!
It was an issue with an app we were using for pre-orders. Our developers
were able to solve it by re-indexing the website. I hope this helps!

Hi,
I just checked my website and it still shows the same error messages while
trying to add to cart.

Nevermind it has been fixed thank you for your help!

I am having the same error. My url is www.GenerousIntentions.com

Can someone help?