Ecart checkout issue
I have been using this system for a few years now with Authorize.net and just got an email yesterday from a client which I can reproduce. When they go to checkout they are getting "Line item 1 is invalid." in the checkout_failure page. I have also gotten "Line item 4 is invalid." My failure page is set to "echo(AuthNet_Result("Response Reason Text"))" but when I contacted Atuhorize.net they expressed that this is not their response. I do see some transactions are processing today but need to know when and why some clients are now getting this failure. When I tested this morning I put in an false expiration date and CVV number in to the checkout form but that is all. I also tested it on two different browsers. The client that brought up this problem yesterday stated they tried a couple of different credit cards....The site is calicosmetics.com.