Maybe this is a known issue but I didn't find it when I searched. I'm running 1.5.7c and if I make a test order and get to the payment page and do not put anything in the credit card/exp/zip and just click continue on the cart I get:

"We have a problem on our end. So Sorry! Please report this error to the Store Owner: SQ-MISSING-TOKEN"

I am just trying to recreate what a customer will eventually do and then email me. LoL. Seems like it should have a different error for blank fields or do a check somewhere.

Has anyone modified the code to address this?

Thanks!