Square WebPay support thread.

[carlwhat]

Sure looks like a SQ-MSCONF error to me.

and what happens when you turn OPC off?

i would suggest reviewing post #52 above.

i have no idea which of your numerous sites is getting that error or the modifications on said site.

if you look at post #52, you will see there are competing listeners attaching themselves to the same event, ie clicking of the confirm order button. if this site has ANOTHER listener attached to that event, then it is entirely possible that listener could be causing the problem.