I’m getting this error when updating the quantity or trying to delete items in the cart → There was an error while updating your cart. Please try again.
When looking at page errors it shows this message - Failed to load resource: the server responded with a status of 400 ()
For example when I add this item to cart → https://www.thanedirect.co.uk/products/h2o-x5-2-x-super-absorbent-coral-cloths and try to change quantity or delete it on the Shopify cart page.. it gives the error.
Also when trying to checkout or moving to another page, the cart clears.