padloper: Error: Exception: Item added to ProcessWire\InputfieldsArray is not an allowed type

[kater]

cheers,

getting:

Error: Exception: Item added to ProcessWire\InputfieldsArray is not an allowed type

with PadOnePageCheckout only

PadCheckout works just fine.

url segments, caches,.. etc checked ...

ProcessWire 3.0.123, padloper 1.3

any ideas ? thanks!!

[EdwinStolze]

I was just getting the same error. 

I did not have a default Payment method installed. After installing the base Payment Option and the Invoice Payment module (for pw 3) It was working okay.