My customers are unable to add items to cart.

[restlesstemp]

When clicking on "add to cart" a message "There was an error. Please try again."  

I did add new items and add modifiers to some of my items this morning.  Can that be an issue?  PLEASE HELP PLEASE

[HC_Charlie]

Hello @restlesstemp thanks for your post. I'm sorry you're having this issue. Can you tell me some more info about what browser/computer they might be using (if you know). There are some issues sometimes with particular browsers. The first solution I'd suggest is to have them clear their website cache and then try again. This will often fix any issue regarding shopping carts.

You could also try to "republish" your website and see if that would trigger anything new/different to reload on your website.