error message from payment module

[DrByte]

Does the customer get sent to paypoint at all? Or just to an error before being sent over to their site?

I didn't see an answer to this question.

If it's happening on their way back from the Paypoint site, then the module might be triggering Zen Cart's spam detection code. More detail required to determine for sure, including what the URL looks like in the browser address bar when the problem occurs.