Problem With Authorize.net Processing

I have a form that was processing some entries just fine… then we noticed that the entries in the Naska section were flagging an error code 270, invalid line item. I cannot figure out what the issue is. I even tried creating a new product and that didnt work either. Any Authorize experts out there? Here is a replica of the form on a test account…https://www.kickinkaratesystems.com/test