Anyone has seen something like this. After hitting checkout I get an error page like this. Nthing in the network but the cart says 500 response from the server in the console.
Note: It happens for products after to cart with cart js (version 0.4.0 author: Gavin Ballard)
Any help on this would be much appreciated.
Thank you for looking in. Yes, it is happening when an item is added to the cart using 3rd party cart js. (https://cartjs.org/)
note: I use their previous stable version and it works for many stores but not two. After cart item is added I can see the items on the page as well as cart son. but up next in the checkout post I get this broken page without any valid error message.
I have tried changing theme, but not finding a significant reason for this issue.