Issue with moneris hosted paypage

Hi Moneris,

We are having an issue with our hosted paypage. After submitting the form of moneris using the correct variables form the developer documentation we are redirected to a blank page: https://www3.moneris.com/HPPDP/index.php

This issue never happened to us before so we wonder if the documentation changed or if it's an issue with moneris gateway.

Could you investigate this issue for us.

Thank you very much.